"If you live to become the oldest person alive, the entire human population will be replaced in your lifetime, except you."
"If you try to grab the brain in its natural state, it will fall apart. When you see scientists pick up a brain, it's because they've used chemicals to harden it."
Probably not the smartest site to get your "Facts" yet they do make for interesting thoughts.
You should definitely check these facts, before believing them.
Only people which were alive before you were born are dead by then.
You can give the homeless a free home but that doesn't cure why they are homeless