A possible theory that has been thought of after watching "Idiocracy".

[masterockets]

It's referring to a book, and it's basically stating people will become stupid tools for pleasure

I thought we already have those

[Ad Bot]

[Kill All]

I thought we already have those

We do, they are called prostitutes 

[Dodger]

I thought we already have those

Not everyone is affected, yet.

Also, it's referring to Brave New World

[Planr]

We still had racial segregation in the 1950s

this is not relevant at all to the factor of intelligence

Are you going to let groups like the Westboro Baptist Church and the Ku Klux Klan ruin your image of 7,000,000,000 people?

the irony of this is that it seems you yourself have "let groups like the westboro baptist church" ruin your image of a group consisting of over 2,000,000,000 people, hell it's obvious with stupid statements like this:

loud mouthed bible-thumpers

they were even afraid to masturbate because Jesus was watching.

[fawkes..]

Negative IDs?

IQ's sorry, my mistake.

[Mr. Wallet]

In case anyone doesn't know, IQs start at zero; a piece of cardboard does not have a negative IQ.

I'm really posting again because that reminds me that the Flynn effect is perhaps the best evidence that education and child-rearing improvements are surpassing any "dumbing" effects on the gene pool for the time being. Go read the link if you didn't know about it.