Good, solid post Mac.

i've enjoyed, and gotten some benefit--from his works over the past 35 years. you're fortunate he lives in your neck of the woods.

I don't understand all the disparaging remarks about some of the "old-timers", who most assuredly laid the critical foundations that everyone benefits from today.

this happened in a post here awhile back--remarks about the "old" way of doing things, and it not being relevant to what is done today...

back when i read that disparaging post, I thought of pioneer Robert Goddard, who did his testing in the 20's, 30's, and 40's, and wrote the work called A Method Of Reaching Extreme Altitudes, which i read in 1973. about during that same time Von Braun was doing work likewise.

without those critical so called efforts, the moon would not have been reached....

all learning is like a funnel:
however, contrary to popular thought, one begins with the the narrow end.
the more you progress, the more it expands into greater discovery--and the less of an audience you will have...