[ExI] A use for canonizer/consensus

[Keith Henson]

Given an understanding of the physics of lasers for beamed energy and
hydrogen for reaction mass, there seems to be a very strong feedback
between the existence of power satellites and low cost transportation
to build them.

In fact, the physics and feedback indicates that future energy costs
will be very low.  This seems to be inevitable if you build power
satellites at all and take the beamed energy route to power lifting
the parts.  The energy cost looks to be so low that solar energy from
space will displace fossil fuels by underpricing them.  (Half or
less.)

Further, with only a ten percent feedback, that is dedicating ten
percent of new power sats to propulsion, the construction rate triples
every year, offering the possibility of ending the fossil fuel era in
a decade.

The minimum investment to reach the self sustaining scale is not
precisely known, but seems likely to exceed $10 B and to be less than
$100 B.

I can go into the technical and math details if anyone cares to see them.

Keith