[fmecffpk] Technology map

Assuming some apocalyptic scenario, and we had to start from scratch, which order should technology be redeveloped?   Build the tool needed to build the tool needed to build the desired thing.  Create a map of dependencies.  There may be multiple routes through the map.

Many games already pretend to do this, but try to do it for real.

Let the map remain useful if some technology survives: starting with some existing technology, achieve some technological goal.

There is difficulty in that there may be alternative routes to some technology different from the way this human civilization developed it.  Propose alternate links; test them.

Of particular interest is what information (a form of technology) you have to start from.  Mere knowledge of Maxwell's equations might give a millenium advantage.  Does the map itself survive?  It may be one of the most important documents, describing what's possible, and how to get there.