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I thought it was sarcasm. He is showing people how their only real obstacle is complacency?

might be - but even if so, i don't see a point in beeing sarcastic as it does not provide anything. i don't know anything more than i did before. /2c

I'm sure someone here was slightly motivated by that. Not me though, since everything he said does not apply to me.

The author is using a rhetorical device called "humor". Many humans take pleasure from humorous statements.