What's "until" and secret rules?
Ice cream should be sold by weight. Volume makes Calorie counting so much more complicated.
Why is this graph sideways
It's not a criticism of people participating in a shitty system and have little say in the matter. It's a criticism of a system that forces people to make shitty decisions.
For one off events like 9/11, you can't. There isn't an accepted definition of "probability" for things like that. Either The question is completely nonsensical (Frequentist view) or the numbers are more or less all arbitrary (Bayesian view).
People will always need a place to live, yes. We also always need food, and general safety from harm. A home is no good if you lose any of the other two while living there. That can happen if, for example, the government or your neighbours decide that your kind is undesirable, or an arbitrary trade war forces businesses in your area into downsizing/bankruptcy and losing you the jobs that paid for your food, or the same happening to farms in the area. How big these risks are will depend a lot on where you are and who you are.
Rent often isn't too far off from the cost of buying. The main financial advantage of buying comes from appreciation, which I would say is a pretty big gamble.
Jokes on you, my toddler makes me count the steps each time we go up and down.
Context switches
Used to, but then no one wanted to federate with them because it made moderation harder, so they got rid of it.
Is your lactose free milk prepared/packaged differently from your regular milk? The two keep for just as long here.