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Comment by metalliqaz | Hacker News Reader

If time travel existed, I'd go back and buy me some 1980's Apple stock. I think we just proved time travel can't happen.

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Maybe someone advanced enough to master time travel no longer has need for money?

A bit like saying we could go back three thousand years and corner the market in nifty sea shells

I think 1 of 2 things would happen.

If someone went back in time and bought stock. It would branch another timeline.

If someone went back in time and bought stock. The timeline is altered and we would know only that the time owned stock. But then does that mean that the future has already happened and the past exists at the same time as the future and both the future and the past is constantly changing?

Omg my head hurts now.

you're forgetting the paradox free fixed timeline thing. One can go back in time, but he cannot buy stock because he did not in fact buy stock.

One can go back in time but he cannot displace the air atoms where he appeared because he did not displace the atoms in the first place.

I legitimately love that discussions of company valuations can morph into discussions of time travel on HN. Favorite comment threads anywhere.

One can go back in time but they materialize in the emptiness of space and die, long left behind by our galaxy moving at 1.3 million miles per hour.

Just go back to 2009 and buy bitcoin, then sell it on 15 Dec 2017 at $17,500.

I personally just use the wayback machine.

Pretty awesome how we can all be millionaires as long as we can complete historical information and can choose our buy and sell dates :-)

Or it does, but the person is smart enough to diversify to avoid suspicion :). Potentially because they tried that several times, each time going back and adjusting the plan.

Or 1996.

Seriously, my wife and I bought a pile of Apple stock in 2004.

I wonder if we were time travelers in that old timeline.

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