I can tell you the bitcoin will never hit the amount of 50k bitcoins and that is just becuase the amount of bitcoins on the earth if you are not going ot die
you will never die becuase 50k is irrelevent.
The amount of the bitcoin is just 20 million after accounting for the losses. That is very small amount.
In terms of the supply, the bitcoin is even better than the precious metal. The gold has unlimited supply.