My Bad Calf Cramp was a Blood Clot

doppler1If you have a persistent bad calf cramp it could be indicative of a blood clot.  A blood clot, once in your body, can break off, go elsewhere and get into your lungs and/or brain and kill you.  I did not know this a year ago, and even after the clot went away after six months of medication, it does not seem to be as widely, or as clearly stated, as it should be.

“Your life is in danger – this is an urgent medical condition.” On June 10, 2015 I heard that statement many times from medical professionals and would continue to hear it often as the DVT diagnosis, treatment and resolution continued over the following six months.

Persistent calf pain, which felt like a standard athletic cramp, had driven me to the first of several physician appointments which led to the diagnosis.  If you are experiencing such a cramp, or have had a persistent issue with your calves, you may be experiencing a DVT.

Chris Bosh had a much worse condition that included clots traveling to his lungs, which can lead to an embolism.  Women who suffer DVTs through pregnancy and delivery are at higher risk than I was.  There are many common ways in which a clot can occur, and my experience was about as good as it could be all things considered.  I got off easy – but it was completely new to me that the initial pain could arise from what felt like a conventional athletic cramp.

After multiple appointments with several types of physicians, many risk factors were identified, but none was ever clearly the “smoking gun.”

  • Trauma to the leg – I had bumped my front shin against a steel beam 10 days prior to the diagnosis, and trauma is a known risk factor.  The migration of this pain, from the shin on the front of my leg to the calf in the back, was one of the m
  • Flight – I travel a lot and regularly fly overseas.  DVTs are a known complication of long flights with a host of ways to mitigate the risk, including wearing of calf compression socks (which themselves are recommended mostly due to their ability to mitigate pain once someone is diagnosed with a DVT, rather than do to known statistical mitigation of DVT onset).  While this is the most widely known factor – most of the physicians I saw did not think this was a major factor.
  • Exercise – I had worked out a lot prior to onset.
  • Dehydration – Due to the exercise, travel, and a common side effect of me being Celiac.
  • Celiac – I’m Celiac, but there is no known data about risk factor correlation between this and DVT.  (Although most auto-immune disorders like Celiac tend to make everything worse.)
  • Rhabdomyolysis – In 2014, I had exercise induced Rhabdomyolysis (this is its own long story, due largely to Celiac, Exercise and Dehydration).  There is some data that there is correlation between this and DVT.

After six months of blood thinners with no change in the size of the clot, the physicians I was dealing with agreed that continuing that therapy was unlikely to be successful.  Fortunately, one final ultrasound showed that the clot had greatly decreased in size.  I will continue to take a thinner for flights over 5 hours.

Throughout this process there was; (1) a lot of fear, (2) inconsistent information, and (3) not much guidance as to finding others who had had similar experience.  Hopefully this helps someone else should they have the same issue develop.

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Technology Forecasting and Predictions: 2016 (7 of 7)

DTNS’s 2016 prediction show, #2657, was published on December 31, 2015 and along with the diverse group of hosts, there was a broad range of predictions in many areas.

  • Virtual reality dominated from an air time standpoint.  With multiple big companies and startups working in this area, it becomes easier to look at use cases and make real predictions.
  • Software bots and intelligence beyond the current digital assistants (Google Now, Siri and Cortana) will emerge as a trend.
  • Cyber attacks – their possibility and consequences.
  • Gaming – Nintendo will accelerate the launch of the NX.
  • Facebook – will be active in search (or not).
  • Drones – there will be unintended consequences in the US FAA’s drone registration plans.
  • Uber – regulatory concerns about whether or not drivers are employers will continue and eventually become a Federal issue.
  • Quantum computing – new evidence of performance will emerge and could cause new regulations about import / export of this equipment.

I’ve logged the full breadth of the predictions in the same google sheet I’d used for past episodes.

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Is that a Disruptive Prediction? (6 of 7)

“And two years later, what come out? PlayStation 2.” – Ali G

Ali G

Linear predictions are important, but it is unlikely they are disruptive.

Some predictions are linear – like that made by Sasha Baron Cohen’s character Ali G above.  Sitting in 1993 it might have been disruptive to predict Sony’s entrance into the gaming console market.  Nintendo and Sega were certainly impacted over the past 23 years.  However, once we’d seen a PlayStation, extrapolating to predict an improved future PlayStation was not disruptive.  It was linear assumption that included estimates about the commercial and technical roadmap in consumer electronics and gaming.  Other predictions are less linear.  Some predictions are truly disruptive.

Disruptions fit into certain categories.  Disruptions have certain characteristics which improve their likelihood of; (i) spreading quickly, (ii) surprising, and (iii) creating effects which weren’t expected.

Looking at my own technology predictions at the end of 2015 – the only area I felt would be truly disruptive was Self Driving Cars (or Self Driving Automobiles, Autonomous Vehicles, etc.).  There are a few areas where current media hype appears to anticipate something being ‘Big’, where I’m skeptical.  I’m less impressed by the potential with drones than I was.  While I feel I was too skeptical about 3D printing – it doesn’t feel as if it will be the consumer-level, household ownership, type invention that was once forecast.

Many areas where developments and technology are growing – software, payments, life science, etc. feel more linear in their development than they feel disruptive.  Eradication of cancer, creating longer lives with better health, automating financial services and improving computational power are all important and significant.  When those innovations arrive, will we really be surprised?

Self Driving Vehicles will be Disruptive

The arrival of self driving cars feels like it will have impact beyond what we currently anticipate based on a past list of components that increase the probability of a technology being disruptive.  A simple scoring of “1” for each of the 12 items on the list leads to a total of 11/12.  Such vehicles are easily ‘inserted’ into the current global infrastructure.  All it takes is one municipality, one buyer and user demand.  Once inserted, autonomous vehicle should find ready penetration once they work.

The disruptive potential of self driving cars (or intelligent vehicles "IVs") is made clear with a framework

The disruptive potential of self driving cars (or intelligent vehicles “IVs”) is made clear with a framework

It isn’t clear if there is Compound/Geometric behavior in vehicle networks – but it seems entirely possible that a small addition of such vehicles, if they are truly safer, could have a huge impact on overall road safety.  Emergent Behavior simply means that many of a thing may behave very differently than just one of a thing.  This certainly seems possible.  Fleets of autonomous vehicles available for users could create dramatically different driving, travel and transportation behavior than what is currently done.

There are three areas where current inertia around intelligent vehicles provides the technology with the power to truly disrupt.  The supply chain is massive, fragmented, and all in pursuit of this concept.  The components for this innovation may already be in place. Further, these are big players who are persistent – if there is resistance or failures, they will continue to pursue their goals.

Lastly, the vehicles are being designed to be reverse compatible with the existing traffic infrastructure.  Google’s push to modify the vehicle, rather than requiring the modification of millions of miles of roadway, has shown that this is possible.

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Travel Guide: Clothing for Long Flights and Travel

Favorite travel gear.

Favorite travel gear.

Balancing comfort and style while regularly logging over 100,000 miles a year in flights (or even doing a few trans-oceanic flights a year) isn’t easy.  I’m good at identifying comfort – fortunately my wife, daughter and mother-in-law can help with the style.  Icebreaker and LuluLemon are the two brands with multiple entries on my list.

While comfort and avoiding looking like a clown are the top priority on the flight – it is a huge bonus if the clothes you’re wearing can also be back up inventory for what you are doing on the trip.  This is really useful if your bags get lost!  For important trips – get their with a day buffer.  Always have backup gear on you for a business meeting.


Nordstrom’s Smartcare dress shirt has great breathability (which makes it comfortable) and is practically indestructible.  In a pinch I’ve worn it straight off of +10 hour flight into a meeting.  My daughter has chosen pink versions for me.

Icebreaker has two entries in upper body wear, with more elsewhere.  Most important is their hoodie – I travel with a 200 gsm for chilly flights and as backup for weather changes.  A lighter weight 120 gsm is great for back up – they are easy to wash and don’t get smelly if you have to re-wear it in a pinch.  With both, layering for warmth is easy.

Polartec’s PowerShield Pro and Neoshell products are some of the most advanced membranes you can buy for outerwear.  I’ve been traveling regularly with a Kishtwar jacket by The North Face and appreciate its ability to keep my dry without making me sweat up a storm.

Slacks & Shorts

LuluLemon returns with their ABC Pant.  The fabric is reminiscent of a leisure suit from the 1970s, but the cut is right and it has survived several spills and tumbles.  Writing up this post made me start thinking more about pant and slack comfort and fabrics.

For shorts – O’Neill’s Ultimate Board Shorts are not an exageration.  Now branded as the Traveler Freak Hybrid Board Shorts, they are just dressy enough to look nice when paired with a collared shirt, can dry quickly if used as swim trunks and have enough pockets to get you wherever you need to go.  Getting in a run or exercise session helps jetlag and aids in sleeping – because of that, keeping a pair of LuluLemon shorts convenient helps keep my body clock on schedule.

Boxers & Socks

Jobst compression socks.  I had a DVT in mid-2015.  Prior to that, I’d always been focused on blood flow safety on long flights, but that certainly focused my awareness.  These are comfortable, easy to wash and are on every physician’s recommended use list for blood clot care.  Icebreaker socks are great for shorter flights in either dress shoes or sneakers.

1-IMG_6004I met the Saxx team at ORS in 2015 – their booth proudly proclaimed, “Life Changing Underwear.”  They aren’t kidding.  It isn’t the fabric (for that, I’d been using Icebreaker), but instead the garment design.  Saxx uses a cloth cup or jock-strap in their design that is very comfortable and this really is true on a long flight.

Shoes & Belts

Learning to wear minimalist shoes for long flights and the long walks through airports has reduced foot and knee pain.  It took me some time to build up front strength such that I could wear these kinds of shoes for the long walks common in traversing airports. I prefer either New Balance Minimus if something less dressy is okay or VivoBarefoot if dressier is better.

Reversible dress belt.  My current belt was purchased in a 3-pack from Costco, but I’ve found other good versions on Amazon.  Amazon also has many metal-free belts for getting through security easily, several of these are also reversible.

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Tech Forecasting and Predictions – Self Blindness (5 of 7)

Reviewing past podcast tech forecast shows reveals that the hosts are very good at making predictions – but it was surprising to me that those who had domain expertise were less likely to make predictions about their area of expertise.  For instance, Patrick Beja not talking about his outlook for the gaming industry was surprising.


Predictions and technology forecasting aren’t easy.

Once I held myself to task and put together my own list of predictions, this hesitation made sense.

The areas where I’m most knowledgeable are technical fabrics, filtration, membranes and material product design.  However, in these domains, I did not want to go into detail at all. I didn’t want to fully share my views on the 1 year, 3 year and 5 year outlooks in those areas.  I didn’t want to give away perspective that is different than what we already have put into the public domain, and I didn’t want to share anything in this forum that might not be 100% in line with what I’ve shared with customers.

Further, like the hosts of those shows – if I’m already known as an expert in that space, there is little incentive to make statements about the future.  I can only be wrong, my reputation can only be hurt.

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Tech Forecasting and Predictions 2015 (4 of 7)

After listening to six years of tech prediction shows  – it seemed only fair to add my own predictions based on industrial and slower moving technologies.  I’m attempting to follow the rules as laid out by DTNS and the observations made in past posts.


  1. Assume the DTNS predictions about IT and consumer level technology are true.
  2. A year for the forecast will be included.
  3. Some kind of quantitative measure must be included.
  4. Details for the forecast are listed here in Google Sheets.

Materials Science

Elmarco_INDARISE (2013_10_02)d

Materials science innovation takes 20 years per Musso.

Materials science will remain a difficult area for the lay person to understand and macroeconomic trends will continue to push investment away from this area for that very reason.  Mega mergers like Dow-DuPont will reduce spending on early stage materials sciences and academic spending will be driven towards ‘vanity’ work that leads to publications, rather than commercialization.

Prediction #00.  Materials science will continue to move at a slower pace than IT; but within the next five years (2021) increased integration across IT, computational power and documentation of existing materials shortcomings will lead to an acceleration in materials investing and discovery.



Wearable technology from the movies. A self-drying, self-size-adjusting jacket from Back to the Future.

The main disruptive component in wearables is the smart phone.  Innovation in smart phones will continue in a largely linear fashion; longer battery life, increased durability, increased performance.  Prediction #01: Smart phone innovation will remain on a mostly linear path through 2021 (5 years).

Easily configurable networks for wearable components that we carry with us all day long will emerge.  We see hints of this now with how different watches are bound to certain operating systems.  #P02: Within 3 years we’ll see the emergence of a primary constellation type system for devices we carry with us all the time to talk with each other.

The main drivers in other ‘wearable’ technology – smart fabrics, membranes, body sensors, etc. will be cost and performance.  #P03:  The first major market to adopt such technologies broadly will be healthcare, and that will happen within 3 years.  #P04:  Within 5 years, one of those innovations will shift out to the mass market.

Energy Storage, Vehicles, Autonomous Driving and Uber

Since their introduction in 2010 to the present, about 1,000,000 electric vehicles have been sold.  This is roughly 100% of all non-traditionally fueled vehicles, as the first mass market hydrogen vehicles introduced in 2015 are effectively at 0 units sold.  #P05: From now in 2015 over the next five years, that number for all non-traditionally fueled vehicles will jump to a total of 10,000,000.

Toyota knows more about EV and autos than most of the world; what do they know about hydrogen fuel cells that makes them so bullish?

Toyota knows more about EV and autos than most of the world; what do they know about hydrogen fuel cells that makes them so bullish?

#P06:  To get to that number of 10,000,000 total units sold will involve a combination of new technologies – including fuel cells, more expensive technologies, and their usage through vehicle sharing which will amortize their costs over more passenger miles driven. This combination will take the full five years.

#P07: An autonomous driving vehicle system will be introduced in a major global city within three years (2019) – a passenger will be able to book a ride in such a vehicle.  Google’s work with Ford foreshadows this.

A major constraint in adoption of new energy systems for vehicles (be those vehicles autonomous or owned) will be the existing infrastructure, as highlighted by this recent article on BMW and Nissan using common charging methods.  #P08: Countries other than the US who are not as heavily invested will attempt to leapfrog and accelerate adoption through policy and investment goals – this will be clear within three years (2019).  The US’s continued favoring of petroleum based fuel systems will impact this adoption the same way that it has domestic usage of drones.

#P20:  The ‘containerization‘ of individual travel – the fluidity, systems, software and hardware utilization that changed shipping, will be a dominant trend in hindsight within ten years (2026).

#P24:  There will not be an Apple Car – debate about it will be gone by 2019.

Aerospace and Drones

Drones will have their ‘Marijuana Moment’ with the FAA; states will attempt to bypass existing legislation, relax rules and promote growth while the federal government follows a different set of incentives.  #P09:  A US state or collection of states will actively ignore, promote growth, or otherwise act out of alignment with the FAA in their goal to foster this growing industry within 4 years (2020).

#P10:  Within five years, a mission will have been launched (but not yet necessarily completed) to retrieve or mine an extra-planetary object (2021).

#P11:  Elon Musk will not be buried on Mars.  (Year uncertain.)

#P12: Within 10 years (2026) a common, every day item which is of value to the individual will include components that must be manufactured or produced in low / zero gravity / orbit.

Agriculture and Food

The combination of activities listed above under ‘Energy Storage, Vehicles, Autonomous Driving and Uber’ will have a dramatic impact in agriculture.  Fully autonomous vehicles will be deployed in force.  #P13: The labor force involved in agriculture, particularly in regards to harvesting, will drop by 30% within 4 years (2020) due to the above mentioned changes.

Further, changes due to increased usage of drones, IoT and other data systems will have a huge impact in the consumption and productivity of agricultural feedstocks such as pesticides and seeds.  #P14: From a materials standpoint, consumption of these items by mass will fall by at least 30% within five years in the US (2021).

The health and wellness component of our economy will continue to drive increased visibility about agriculture and food.  #P15: Within four years a major global insurer will offer discounts for individuals who allow some degree of food monitoring, or who rep and warrant what it is they consume.

Maker Movement, Internet-of-Things (“IoT”) and 3D Printing

I’ve not been a big fan of 3D printing, but the more I talk with production sites around the world – I was wrong.  The statement below was made in January 2013 (effectively 2012) and looked out 12 years.  I think it will be wrong and may be wrong already.

My prediction is that it isn’t until 2025 that 3D printing products are in regular use in automobile lines selling over 50,000 units per year or electronic goods selling over 200,000 units per year.


IoT is real; but beyond Google Nest will require another new item for mass adoption in the home.

However, I stand by my prediction that 3D printers will not ever achieve mass market consumption status. #P16: Even giving a 10 year window, US household adoption of 3D printers will never be more than 10% of the adoption of microwaves (2026).  Part of this has to do with the Uber-ization and growth of the sharing economy – part of it has to do with the limited utility of 3D printing.  3D printing remains more time consuming and much harder to do than video editing – I don’t think that will change.  #P16.1 If Best Buy exists in 3 years (2019) – it won’t have a 3D printer for sale on its shelves.

IoT will be a big deal – but it will require a ‘killer app’ to achieve its vision.  If we counted the total items in a household today and then looked at how many of them had a transistor / integrated circuit (“IC”) in them, the count is really low.  [Fewer than 5%?]  Google bought the best available Killer App.  The next one will have to be created.  #P17: The next killer app for IoT will be a new device (not the garage door opener, not the front door lock, the door bell, etc.) along the lines of the Amazon Echo, and it will exist within four years.

Healthcare and Life Science

Healthcare will also have its ‘marijuana moment’ in the US – but it will be driven by high end, top 1% of wealth individuals, who have access to treatments internationally, for which they will require maintenance services or therapies which are not yet available in the US. Or, a smaller country with more liberal views on healthcare, will make widely available at lower costs a therapy which is not otherwise available in the US.  #P18: This will occur within six years (2022).

#P19:  In 20 years the idea that someone could have their consciousness (brain, soul, etc.) downloaded onto a device or network will seem as silly then as it is today (2026).  This is the opposite of the Ray Kurzweil outlook.

#P23:  Theranos will be shown to have significantly misrepresented technical results and its technical results within two years (2018).  However, the complexity of the approval process and the technology will leave it difficult for the lay-person to explain exactly what went wrong.

Information Technology and Software

Many of the trends that have driven the growth in IT, software and the increased consumerization of technology are now on linear growth paths.  Disruptions are unlikely. #P21: Moore’s law will continue for the next 20 years.  #P22:  However, despite this continued growth – the major IT players in the Fortune 500 will be the same in 2021 as they are in 2016.  In 2026, that group will be 90% the same.

#P25: Apple Pay will win the payment space and this will be clear by 2019.

The major disruptions will occur where IT encounters other established industries.

Finance, Venture Capital and Start-ups

Investment themes, rather than individuals, firms or companies, will continue to drive returns in illiquid alternative investments.  As an activity forecasting activity for finance, venture capital, start-ups and the universe of unicorns is closer to forecasting long term interest rates, than it is a statement about current technology themes.

1-Fullscreen capture 12242015 64227 AM

Predictions and format are available as was done for DTNS past shows.

#P22: Capital flows, rather than technology trends, dictate returns for early stage investors – any decrease in Unicorn valuations (or the prior increase) within three years will show strong correlation to other, well-established, more easily tracked finance information such as interest, fixed income capital flows, macroeconomic trends or FX rates.  For example – a major devaluation in Unicorns will have more to do with valuations that were too high due to currency improvements of the US dollar and subsequent devaluations due to that over-valuation than it will have to do with the state of the actual technology and its commercial use.

Futurism & Other

#P23: If artificial intelligence occurs, we will only know of it at least five years after its first inception (indefinite).

Honesty and integrity will grow in importance for business.  Volkswagen and other businesses that have faked emissions tests will take longer to recover than currently believed.  Businesses that remove clutter and doubt about what they do and how the world really works will be more and more welcome.  #P26: The Daily Fantasy Sports industry, which has come under fire for its methods, will be substantially regulated or out of existence by 2018.  I also think of this as the ‘MMA-ification’ of business; prior to the 1993 UFC events there was much debate about what fighting style was best – after that event it was clear.  Businesses that promote and create clarity will win.

Quantified metrics will grow in importance.  #P27:  Within six years, a cost method other than miles-per-gallon (“MPG”) will be the dominant window sticker method for evaluating vehicle use prior to purchase in the US.

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Tech Forecasting: Comments on 6 Years of Forecasts (3 of 7)

1-Fullscreen capture 12232015 105118 AM

Perfect forecast = Widespread Uber acceptance

Over six years of prediction shows, when the hosts were right, they were very right.  When they were wrong, it was usually because they were too early or because of a surprise event in the area they were forecasting.  Most of the big misses weren’t really misses – they were simply areas outside of what the show normally covers.  There were four areas that stood out when reviewing past podcast tech forecasting claims.

1. Forecast structure.

This is obvious, but the wording of a prediction / claim matters a lot.  “The iPhone will be big!” is much less quantitative than, “Apple Watch will not meet its 10 million unit forecast.”  Bundling forecasts makes things complex as well – “The Nook will never be more than 5% of the sales of the Kindle” assumes that Kindle will grow, but that the Nook will never achieve parity in market share.

The best predictions / forecasts were well worded.  There is a lot of insight made into things like, “The Internet of Things will have a retail app,” – but perhaps the fact that it is tough to word the forecast indicates that the forecast itself is unlikely to occur.  If it is hard to phrase the prediction, it is unlikely the prediction is ready to be made.

2.  Prediction source.

Who makes good predictions?  Over the course of the show back to 2010 there are some brilliant, highly accurate predictions.  Patrick Beja nails the Apple Watch.  Google Wave, RIM, Palm and many others were appropriately eulogized ahead of their deaths.  I could not interpret any pattern in who makes goods predictions about what field.

It did seem like experts in a field seemed less likely to make a comment about their area of focus.  JR Young – no comment on drones.  Patrick Beja – no comment on gaming.  Tom Merritt held off on Patreon prediction comments – even though he is arguably one of the world’s foremost experts on the platform.

Prediction structure appeared to matter more than the person making the prediction.

3.  Technologies not covered.


Predictions outside the area of the show aren’t often made.  As an example – SpaceX and Blue Origin both completed orbital recapture in 2015.

There were so many areas that were not forecast!  These Type II misses (error feels too harsh) – where a trend is occurring but there is no ability to forecast it, seemed very common.  There was never a forecast made around Tesla or electric vehicles (there was a prediction about a ‘big improvement’ in battery technology covering 2011).  No one predicted Uber.  Nothing about SpaceX.  No major predictions have been made about life science or medical technologies.

Forecasts about the start up community that is deeply tied to technology are few and far between. There is no mention of Unicorns.  There is one mention of a bubble – made by Sarah Lane in 2011.

4.  Predicting disruption.

For  the 2015 forecast show, DTNS 2397, that was published on December 31, 2014 there were predictions made about Uber related to their CEO and whether or not it would finally meet ‘general acceptance.’  I give that prediction a 100%, as Uber went from ‘not okay’ at my local RDU airport, to ‘okay’ over the course of the year.  However, Uber does not show up before that forecast.  Neither does the disruptive tethering of app infrastructure to transportation.

The bulk of the predictions made in the past shows are around the point at which technology becomes consumer ready.  This makes sense given that is what the shows cover every day all year long.  Many of the trends being forecast are at the cusp of end consumer adoption – the debate becomes, “is this the year?” or, “will this die before it fully matures?”

The crew correctly forecast all of the building blocks that let an Uber happen – the growth in the app store, the increased market share of the iPhone, even the fact that the iPhone itself would be the winning platform.  These trends were capitalized on by an Uber to pursue a market that is not a historical area of focus for DTNS.

To make use of these prediction shows to anticipate disruption, a few rules could be followed:

  • Assume that they are right about IT, consumer and near-consumer adoption.
  • Certain domains outside the normal coverage of the show are likely outside the area of prediction.
  • Assume that the predictions made about IT will combine with whatever predictions and technology roadmaps exist in areas outside of those predicted on the show.
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