David NelsonAn Alternative to the Kardashev ScaleHere I propose Hydrogen efficiency as an alternative to the Kardashev Scale. The Hydrogen efficiency is how many kilograms of raw Hydrogen…Oct 13Oct 13
David NelsonMaterialism, Christianity and scientific rationality all walk into a bar…Brain in a vat, living in a simulation, Boltzmann brains, multiverses, infinite universes and physical materialism all seem to have a…Jun 23Jun 23
David NelsonPrerequisites for UtopiaTwo smart men in the 1950s proved that a free market is the most efficient way of distributing resources in an economy, it is called…May 6May 6
David NelsonModular Launch LoopsRockets aren’t the only way to get into space, in fact they are the most expensive and inefficient. Launch loops are a better alternative…Apr 22Apr 22
David NelsonHomecubeIKEA bet that if it made flat packed furniture simple enough then people would be happy to assemble it themselves. Homecube is doing the…Apr 20Apr 20
David NelsonShipping without shipsThere is a fundamental design mismatch between modular shipping containers and the monolithic ships that transport them. A container ship…Apr 20Apr 20
David NelsonForget SCUBA, use electrolysis insteadWater is almost 90% oxygen by mass. One liter of water has more than 3000 times more oxygen than one liter of air. There is more oxygen in…Apr 19Apr 19
David NelsonSuper, hyper, ultra good blogThe words super, hyper, ultra and others like them are almost entirely meaningless. When I hear these words I use them as a signal that the…Feb 15Feb 15
David NelsonLiquid democracyMore general theories of governance have fewer arbitrary aspects. Liquid democracy enables a form of governance which only has one…Feb 15Feb 15
David NelsonWhat I Like About HippiesI’ve recently spent some time at a hippy gathering. Here are some unique things about their perspective that I like.Feb 15Feb 15
