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Thali, San Francisco and Emergency Response/Recovery
I went to SF to meet with folks from the city of SF to discuss how we could use Thali to help improve recovery after a major earthquake. The meeting was both productive and eye opening. Our next steps...
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Serval and Thali
Serval is a project that wants to enable mobile phones to work no matter what. They have built mesh technology to let mobiles make voice calls as well as share data and have an app available on...
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A quick and dirty way to calculate endpoints needed for forming a mesh with...
I needed to figure out how many Wifi endpoints which had a range of around 300 feet would be needed to form a mesh that covers a square mile. I do a bunch of 1/2 baked math below to estimate that 138...
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Building local Internet infrastructure for disadvantaged communities
Smart phones are showing up in the poorest of countries. Even the Internet is showing up but it’s still quite expensive. But for a reasonable price we can deploy Wifi based local mesh infrastructures...
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How do we build apps for this wonderful mesh based Internet anyway?
Previously I waxed poetic about the amazing powers of Serval to create mesh based Internet infrastructure for developing and less developed countries (LDCs). The thesis being that if we had meshes of...
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Why are enterprises interested in the block chain?
My day job has required me to look into issues related to using the block chain in the enterprise. This lead me to a simple question - why would an enterprise be interested in the block chain for...
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Going off chain for storage
It turns out that building a distributed database with ACID behavior (aka a block chain) isn’t easy, it requires a lot of code and a lot of processing. As a result block chains like Bitcoin can...
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How to make block chains strongly consistent
Block chains can be strongly consistent but not in the normal deterministic sense we are used to from consensus protocols like Paxos. Instead the strong consistency is probabilistic. That is, if one...
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The block chain and the CAP Theorem
In this article I argue that depending on how one programs one’s client, one can build a Consistent and Partition Tolerant or Available and Partition Tolerant system on top of Bitcoin or really any...
View ArticleX-Mouse Button Control, Web Navigation, Tilt Wheel and Remote Desktop
I recently decided to buy the X-keys L-Trac Red Trackball because I just like track balls and this was one of the best reviewed trackballs I could find. Over all I’m happy with my purchase but I have...
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