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> It's nonsense of course, if investment bankers were unnecessary, they woudn't have jobs.

By this logic, con artists are necessary.

Of a short time horizon, he's absolutely right though.

If investment bankers all went on strike for a month, civilization would carry on. If all truck drivers went on strike for a month, it'd be a catastrophe.

As are landlords.

I actually argue that landlords are relatively useful. Having to look for realtor to sell and buy property each time you move even for short term would be lot worse. And how could those without enough savings like students go anywhere?

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