Projects based on the elimination of trust have failed to capture customers’ interest because trust is actually so damn valuable. A lawless and mistrustful world where self-interest is the only principle and paranoia is the only source of safety is a not a paradise but a crypto-medieval hellhole. As a society, and as technologists and entrepreneurs, in particular, we’re going to have to get good at cooperating — at building trust, and, at being trustworthy. Instead of directing resources to the elimination of trust, we should direct our resources to the creation of trust—whether we use a long series of sequentially hashed files as our storage medium or not.
I had always heard the lower accuracy from gps was a government imposed restriction or limitations of the protocols not a technical one. is that simply an old myth? I know nothing about the tech personally.
What you are talking about was called Selective Availability and it was disabled in 2000 by Clinton's executive order and never used since then. Current GPS precision is limited by ionospheric scattering and reflections of signal from buildings, it is indeed a matter of having enough satellites in sight to filter out outliers, and smart signal processing, to get better precision (while 30cm is probably possible only by also having a decent INS onboard and integrating data for some like, like 10-20 seconds, with sensor fusion with the INS).
For God's sake, stop researching for a while and begin to think!