RE: Will humans go extinct in 100 years?
Resources on this planet ARE limited including fresh water. While we may be clever enough to prevent disaster, history tells us that we won't make the necessary changes until disaster strikes, and by then it will be too late. Humanity will not go extinct soon, but civilization will and there's little chance of climbing back to where we are now from that dark age since almost all the easily accessible resources are already exhausted. Escape into space is highly unlikely. While I'm sure there are inhabitable planets out there, I doubt that anyone beyond a few highly committed explorers will ever see them. The majority of us will never commit the resources to allow any kind of exodus, assuming that it is even possible. Eventually, we will go extinct, if for no other reason than the nothing lasts forever.
