NO! Absolutely no money changes hands on Predict.Life, not do we serve as a platform for gambling by others. The only thing that can be earned on Predict.Life is credibility for brainpower (by making correct predictions about the world), not money.
What are my points worth?
They have no cash value - they are a way to gauge the correctness of your ideas.
How are you making money off the site?
Currently by advertising (thank you for supporting our advertisers, every little bit helps to keep the site going) and eventually we intend to allow sponsored questions, but that is far in the future.