Too late I don't think so..afaik people can still invest as potential to go to $100K or $500K still exists, but if he referred to owning a whole bitcoin it could be the case as price as gone up for everyone of us to own atleast 1BTC.
Do you really believe that Bitcoin can reach 500k in the upcoming bull market? 100k is a very realistic price, but 500k is something unlikely in the next couple of years.
If you wanted to say that this is a possible price for Bitcoin in the future, then this is too distant a goal to start buying based on it now, because bear markets are still awaiting us and who knows how much the price of Bitcoin can fall during these periods. Everyone should decide whether it’s too late to buy Bitcoin or not, because for some it will be enough to double their investments, while others are looking for significantly greater profits.