The available evidence points to the fact that there appears to be a correlation between sugar consumption and health problems; none can be detected with artificial sweeteners.
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You don't think that having a main wallet containing all of your real money that you tied to a sketchy "financial institution" will reveal your identity when it's the *only* wallet to ever make a transaction with the wallet that you bought your drugs with?
I think that autonomous vehicles will come and go, but they'll be around almost as long as cars with drivers. I'd bet that in the long-long term, urban planning will change such that cars become entirely unnecessary in all but the most remote places. I don't think that we'll ever become so densely populated that the world is one big city, but I'll bet that we'll see large high-rise condos become much much more common, and then it'll be a ride down an elevator to do your shopping and a walk or train ride to school.
It's not that suburbia isn't awesome. It's just the direction I kind of envision things going in. I could be wrong. This sort of radical shift in urban planning would take centuries, to take hold in the west.
To iterate is human, to recurse, divine. -- Robert Heller