It is possible. But well, I will still choose to have a job and let it support my daily needs. I will still choose the safest way. Bitcoin may show us how great it is, but it is still not a permanent solution to financial problems unless we already earned a lot that may last a lifetime. I will still choose to have a job and let bitcoin to be an extra income. It is better to have both so you will always have a plan B when one of those fails.