Satoshi have predicted Bitcoin in the next 20 years, this year is the 14th years when he said that, so we're still in the progress to see Bitcoin going to zero or might be a Million. Honestly, it's hard to see Bitcoin going to zero.
Right. Otherwise we couldn't have a finite limit of 21 million coins, because there would always need to be some minimum reward for generating. In a few decades when the reward gets too small, the transaction fee will become the main compensation for nodes. I'm sure that in 20 years there will either be very large transaction volume or no volume.
With this adoption trend since 2009, we don't need 20 years to be sure that Bitcoin transaction volume and trading volume will become very large in 2029 as Satoshi Nakamoto predicted.
That time will be only 5 more years since 2024, and there will be one more Bitcoin halving, one more market cycle till 2029, which can be a most bullish year of a next market cycle. Adoption grows well, transaction volume grows and trading volume becomes considerable larger with time, and these trends won't stop or be broken in 2028 and 2029 bullish years. Therefore, it's very less likely Bitcoin will fall to $0 in 2028, 2029 or farther in future.