Category Archives: Sustainability

Metro Monitor 2018

This article discusses differences between cities and sectors around the country in terms of economics and demographics.  The authors show that economic divides are increasing between geographic areas.  There are a great many numbers which show these trends. Authors are Chad ShearerIsha ShahAlec Friedhoff, and Alan Berube;  and date is 

screenshot-www.brookings.edu 2018-01-25 13-18-03-392  via Metro Monitor 2018

Blockchain explained through college basketball

Here is the original article the Loadstar referred me to.  It is a picture a bit too rosy, perhaps, but quite clear.

It doesn’t say that blockchain’s smart contracts will turn logistics people from a handful of paper shufflers to a handful of logicians whose job is to read and prove out the code of smart contracts.  That code will be embedded and executed in a transaction, without oversight, so it had better be right. How do we prove that?  The arguments will shift from arguing about how the actual contract matches with what happens, and goes wrong– to arguing about both that, and whether the smart contract program had a bug in it.

I think there’s a new frontier for provability software, that can read a program and match it with some specs to see if it matches.  The computer mathematicians already have software that can inspect theorem proofs and say if they are valid or not.  I think we need similar software.

Remember every program has bugs.

screenshot-www.freightwaves.com 2018.02.21 07-36-08  Blockchain explained through college basketball — FreightWaves

logo  via Blockchain explained through college basketball – The Loadstar

Geographic gaps are widening in U.S. as economic growth increases

This is a quite interesting article on the distribution of economic development in the US.  It says we have to start doing something about the ill distribution to a few highly urbanized areas that are often based on high tech industries.

screenshot-www.brookings.edu 2018-01-25 13-18-03-392   via Geographic gaps are widening while U.S. economic growth increases