Arox2010 - the tricky thing is you never know how much smarter a child *could* have been. It's sort of like lead exposure. People would say, "my child grew up in a house with lead paint and he's fine!" But comparison testing - of groups of kids in different neighborhoods - can find that the kids could have been 5 IQ points smarter if they didn't have the lead paint in their world.
So it's not that the kids go from normal to being institutionalized. It's that the are "fuzzed" a bit.
Our grandparents didn't know about lead poisoning and many other issues. In modern times we know about many things that cause slight brain fuzzing, and we take steps to avoid them. I'm sure in another 50 years that mothers will know about even more things and will be shocked at some of the things *we* did to our kids.
The neat part about all of this is that our current kids are smarter than kids 200 years ago - and in another 200 years our kids will be even smarter! We're working towards our "true potential"!
So for example when I was pregnant with James I didn't smoke, I didn't drink, and we tested for lead. But what other things *should* we have watched for that we didn't know about? Future research will know!
Edited by Lisa Shea (02/12/10 10:11 PM)