This page can help with questions about Bitcoin (XBT)
See the canonical “newbie-friendly” thread for this question. Where do I get free bitcoins?
What if someone bought up all the existing bitcoins?
What is a 51% attack? And what is double spending?
Won’t loss of wallets and the finite amount of bitcoins create excessive deflation, destroying Bitcoin?
What happens if someone starts another blockchain or cryptocurrency?
How can I store bitcoins securely?
What are the pros and cons of using new bitcoin addresses for each transaction?