Suggestion: wind energy will make gliders cheaper

"Nice idea, but among other things, a turbine blade is designed to cope
with the fact that the effective airspeed of the inner portion of the
"wing" is always somewhat less than the outer portion"

Not a problem, as long as you always thermal in the same direction.

Of course you'd fall out of the sky if you tried to fly straight, kind
of like a PW5.

I began thinking about how to couple that light little glider with a similarly light and portable "simulator" structure. I was looking for a complete setup that could be easily carried a long distance by one person in one trip so it could be set up in a park or on campus or in a shopping center.