Within a decade ago there were couples of rundown on bitcoin going to zero $, as at then it was a bone of contention but now with bitcoin reaching a new ATH $99k with imminence to break above $100,000, all of those master plans and orchestrated lies to cause FUD about the future of bitcoin going zero has now lost base.
Today, I can only but imagine the thoughts, reactions and the regrets of those who took those rundowns seriously and failed to invest in bitcoin a decade or some 7, 6 years ago.
The possibility of Bitcoin going to down to zero remains. The question is when it will happen. The fact that Bitcoin is close to 100K USD doesn't mean that BTC won't become obsolete at some point in the future and it's price would drop to unprecedented levels(maybe zero).
Back in 2015, I also thought that the BTC price will crash from 300 USD down to zero. I had little to no knowledge and experience and I thought that Bitcoin is some weird project, that won't survive for more than 5 years. I was wrong. It's normal to have wrong expectations and opinions about something you know nothing about.
The volume and sheer size of BTC now become much more bigger than in your days - so you don't see it happening to the zero itself - however, of course, many things can happen in the decades to come, but not the downfall of BTC for sure. Because in order to do so world should be united in the cause of toppling BTC for good in my book.