Thank you for your comment, dear Sab (peace to you!). I can see how increasing family dysfunction in the US would contribute to the phenomenon here. I tend to agree with the author of the study, though that "mutations in the human brain — brought on by advances in society that have made survival less stressful — are eroding our intellectual and emotional capabilities." One example is of that is telling time: we've gone from, say, the sundial (which required some knowledge as to the position of the sun)... to the analog face (which required some knowledge of math, to calculate the position of the "hands"... to digital, where simply reads the numbers, rather than calculate the time.
What I find interesting, though, is that the author candidly stated it was this, advances to make life less stressful. I think THINKING is stressful for many (in addition to physical labor)... and so our efforts to think LESS... and so find ways to help us DO that IS the reason. I encounter it almost everyday and it not only puzzles and perplexes me, but sometimes irritates me. People don't WANT to think... and there are a whole lotta folks out there that KNOW this... an capitalize, even prey on it. Not to take it in a certain direction (no, seriously, but I find it appropo), that was one of the things that bothered me about the WTBTS - thinking was anathema. They did NOT want you to THINK; indeed, they not only discouraged it, taught it out of folks, but meted out their own forms of punishment if you did it (more than they wanted you to, which was VERY minimal). I am a [heavy] thinker (and INTJ) and so this never worked for me. Eventually, we would have had to part ways.
Anyway, apparently the author doesn't think we have much to worry about; the progression is slow. The following comment made me laugh, though:
"... we may be able to magically correct any mutation that has occurred in all cells of any organism at any development stage."
I thought that was funny!
Again, thank you for your comment... and peace to you!
YOUR servant and a slave of Christ,
SA