Looks like this giant is waking up, finally. Been hodling since the last pump in summer.

It has been well-established many times that Bitcoin can't be killed off, but there are definitely still forces that can crash the market hard and take away most (but most likely not all of it's value.

The two most likely ones are imo:

1) Government regulation: History has shown that banning Bitcoin doesn't kill it, but it sure can mess with the value. A major power wanting to "regulate" crypto can definitely mess with the price. As seen with the most recent China FUD

2) Flippening: There are a lot of altcoins on the market, and one of them will probably be able to challenge Bitcoin at some point. I think it's delusional to think that Bitcoin will stay nr #1 for all of eternity, just because of first-mover advantage. Hard to say when something new and (hopefully) better will take it's place as the biggest coin. Maybe in 5 years, maybe in 50. Perhaps 500.

There are many altcoins out there, and some of them might even have a bright future ahead of them. I still think investing in them longterm is a risky strategy, so I mostly trade in and out of them with the intention of ultimately boost my BTC portfolio.