[AndrewKemendo]

You're missing the point. Any investment, ETFs or otherwise, work, when the market is going up or sideways.

It falls apart if you needed money in - oh say 2008 or 2009. Or at any of the other points in time when things were shit.

It also falls apart 200 years from now - so it's not like it's a law that this is a system that will remain in place.

[juliangregorian]

You're being rather argumentative, don't you think? Did you have something worth elaborating with the bit about the random walk? I would still be curious to know.

[AndrewKemendo]

Oh, I just overlooked that part...not intending to be argumentative.

See: http://www.jstor.org/stable/4479810