Ed Young. The Bitter fight over the benefits of bilingualism. The Atlantic.
This recent post on The Atlantic website illustrates the way scholars argue, society responds to the argument, and knowledge advances through the debate.
1926: Bibligualism will stunt intellectual development.
1960’s: Bilingualism leads to intellectual advantages, especially in executive function.
2009: Nice hypothesis, there. Too bad we can’t duplicate it. And why don’t the studies that disprove it get as much attention as the ones that find some (tiny) advantage?
2014: Hey, that guy didn’t do very good research. So let’s keep testing.