Fred J. McCall wrote:
"Paul F. Dietz" wrote:

:Nonsense. Many many things have become affordable because
f advances not specifically directed at those things.

If you think it's nonsense, please tell us just what technologies you
think are sufficiently 'dual use' to Mars flights and something else
(and what that something else is) so as to drive down the costs of
Mars flights.


New stronger materials (a dual use, airplanes and others), electronics
(dual use home computers and others), fuel cells (dual use cars and
others) etc.

That is not even mentioning more directly related dual uses such as
satellite launches and space stations.

Alain Fournier