It's okay to ask questions, however you could have googled or searched on the forum to find many similar threads that will possibly have the same answers that you would get here.

....I will answer anyway.


1. Unless there is a technical error or disruption that renders Bitcoin absolutely worthless (very unlikely) then there's no chance it will fall to 0. For every seller, there is a buyer. This creates the market we have today. When the price drops to $20k because of sellers, there will be buyers seeing the opportunity and buying. This principal follows all the way down from $10,000, $1,000, $100, $10, $1. The lowest price that you think the world would think is a bargain, is probably the lowest price. Technical analysis can prove this assumption.
2. Then it would mean free Bitcoin for whoever takes it from whoever is giving it away for free, for as long as that lasts. It could only be worth $0 if every single person holding Bitcoin decides that it is worth nothing anymore and for some reason hate it so much that they decide to give it away for free. Likelihood? 0%. Even if a major technical issue happens, I doubt people would give their Bitcoin away for free.