We're in a bull run and higher speculations are normally coming out at these times. But I admire those people like him that have always been bullish to Bitcoin ever since. So, $500k in a decade or for two cycles is possible IMHO. We want to see how high Bitcoin can reach for the last decade but let's just give an example of how much Bitcoin was a decade ago, so 2015 started the year with $200-$300 price and now look how much it is just in a decade. So that multiplier that Bitcoin has got is certainly a lot and we might see $500k possible although the multiplier should only get around 4.5x - 5x, might be not that much but with the expensive pricing, it will take time.
We're currently in a bull market but according to the 4 year cycles, 2025 is the last year of the bull market. Thus, by 2030, after undergoing another bearish cycle, we'll enter the bull market once again. Thus, it's quite possible we'll see a new ATH by then, however, $500,000 is more than 4 times the current Bitcoin's price, something which I'm not too convinced that it's possible so soon. A target of $250,000 to $300,000 seems more realistic if you ask me.
People are too optimistic and forget that the more mature and bigger bitcoin gets, the slower its growth. It will not be able to increase exponentially x3, x5 like previous cycles.
Like the current cycle, although the bull season is not over yet, but if we compare it to the 2021 peak of $69k. Bitcoin hasn't even doubled yet, let alone bigger goals like x3 or x5.
If this bull run ends and Bitcoin hits all-time high of $150k, I doubt Bitcoin can hit $300k in the next cycle, let alone $500k.