No one's replied about "spread friction." How do frequent traders deal with that very real cost. I'm not a trader so I don't know the full answer. I do know that newbies know almost nothing about how that affects trading. But it must be a negative: A tiny cost that adds up with each trade. In the end, unsurmountable!
Yes, tons of people trade stocks; tons of people play slot machines.
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Because the Good Life is Just a Pump or Two Away