I would say there is no zero probability but pretty close to 0 if we are talking about the near future. However, if we are talking about 100 years from now, I am not so sure, and the further we go back in time, the less sure I am. I think it is unlikely, as it would mean not valuing a scarce commodity, as has been said, and very difficult to censor, but in the future we cannot know if other alternatives will emerge, what effects the policies implemented will have, and so on.

If the OP is someone who is thinking of buying now to hold for 4 or 5 years, don't worry.