Mathematically speaking it is impossible for Bitcoin to become zero, as there will be always some kind of value attached to BTC.
Therefore this hypothesis can be recalled as nonsense.
In addition to above, practically it is not possible near future.
Demand/Supply is the most important parameter for cryptocurrency price. For Bitcoin price to become 0 there should be unlimited supply OR 0 (Zero) demand.
Supply can not go up. Supply may go down because of forgotten passwords, lost wallets since they are not recoverable. Since the supply is limited and demand will never go to $0 is not seems possible.
This is why paintings do not worth much when the artist is still alive (supply is not constant) but their value estimation goes up after the artist dies.
This is why the value of an antique piece goes down when the quantity of similar items increases in the market.
This is why giant companies produce some products in low quantity with high price.
You can argue bitcoin is not a painting, antique or a luxury product. But you cannot ignore basic rules of the economics.
For this reason theoretically probability of becoming $100000 is higher than probability of becoming 0.
Note : these are just my personal thoughts and does not contain any trading advice. I am neither economist nor investment strategist..
It is impossible for anything to have o value because there will always be someone who values what you don't want. If just 1 single person in the entire world is willing to pay $0.0000000000000001 per btc then btc still has a value. So it is 100% impossible for anything to reach 0 value. Even poo has value and can be used as fertilizer so it goes to show nothing has no value.