[hugh4]

That's really surprising, if it's true.

I'd like to see this one replicated before I start believing it.

I wonder whether it could be useful for other things. If I want to be a better public speaker or tennis player, can I spend five minutes visualising myself as a better public speaker or tennis player? (I wouldn't be surprised if the answer is yes for the first since public speaking is so confidence-dependent, but what about the latter?)

[onion2k]

That's really surprising, if it's true.

It's surprising that years of conditioning to perform worse at spatial reasoning can be mitigated by reading a couple of paragraphs, but that's all. People having an equal ability at a mental function regardless of their sex is not even remotely surprising.