In a decade?  I can't think of anything off the top of my head, but if you take a look at a long-term stock price chart for a company like Starbucks or eBay, you'll see crazy growth over a relatively short period of time.  Are those two stocks Ponzi schemes?  Nope.  And bitcoin isn't a Ponzi either; it's just an asset that's blowing up in value.

As far as the bubble thing goes....I'm not sure whether bitcoin is currently in one.  That's something you can usually only determine for sure after the bubble pops, and in hindsight it always seems pretty obvious that [pick your asset] was in a bubble.  I would add that unlike the price rise in 2016-17 which was led by individual speculators/investors, this current rise is at least partially due to large corporations accumulating it.  That doesn't mean that demand will remain high, but it probably means that a lot of bitcoin is going to remain off the market, which decreases supply.

But I'm really bad at predicting what bitcoin is going to do.  What I do know is that it isn't a scam or a Ponzi scheme (I initially thought that when I was watching it years ago but changed my mind once I figured out what bitcoin really is and why it's so different than other forms of electronic money).  Could be in a bubble, but we're going to have to wait and see for that.