I didn't get that specifically from Orion's Arm, I just think that it seems logical that the people of thousands of years in the future may be quite different in a number of ways from people today. I tried to cover my posterior by listing several different options and using "might".
I agree that Orion's Arm is heavily informed by technologies and social currents that have been trendy in the last decade or so, but that is a problem with every projection of the future, and the reason why such projections are rarely very accurate. It seems that the development of human society and technology is too complex a subject for any one person or small group, no matter how intelligent, to predict with much reliability.
Guys
Fully agree. Given how rapidly technology and culture has changed in the leading areas and that in many ways the rate of changes seems to be increasing SF stories on possible futures are more likely to under-estimate rather than over-estimate the level of changes. [Provided we manage to avoid really buggering things up in some way or another].
Steve