All this exaggerating and speculation by CZ and Saylor is just to remain relevant and keep more attention focused on their businesses because to think of it, how is it even possible for Bitcoin still undergoing so much policy remaking just to fit into society, gets to surpass a precious metal like gold that has been existing even before the current fiat currency of your country became a legal tender?
I still don't know why people take him seriously. Look at his X tweets and posts, they barely get likes because of the losses many people have made from him, and since then, his mode of influencing is now talking about things that are speculations and yet controversial. We want Bitcoin to be up there with a market cap bigger than gold, but it is not as simple as it look, it requires almost all institutional investors to buy Bitcoin and because of the monopoly of institutional wealth, it will be difficult to overtake gold in the next couple of years, but it is not completely impossible.
Just like @MiaChioe pointed out, it's going to require a 20x return from its current levels a d not even in the next two bull runs for Bitcoin to achieve this feat even though the price might get to an ATH that's believeable.
For Bitcoin to get to about $350k in the next bull run, would require that its market cap should be around $6.9trillion which is about 1/5 of golds current size and that's being mathematically illogical according to my calculations.
We struggled to make a 100k appearance, and this took more than 10 years, if we are to make the same journey again, it will require many sacrifices that were done before. Assuming the country reserve we expected actually played out, it would have been easy, the more they buy, the more it encourages other people to buy and invest in Bitcoin, that is one of the easiest paths to achieve that coin market cap.