Personally I think the time frame is too short to hit the $500,000 mark.
What do you think?
Before the end of decade is a long enough time, bitcoin grows fast, sometime explosively.
Just see this chart to know that 5 years which we have left until end of this decade is actually what it's all needed for bitcoin to reach that point

another factor is the rapid increasing money supply that helps bitcoin get that price faster.
There is no doubt that the price of bitcoin will continue to rise and explode in the next 5 years is certain and inevitable, no one denies that. But what we're discussing is whether it can reach $500k before the end of the decade, and to me, that's too big and unrealistic a goal. Where are we going to get trillions of dollars, and specifically $8 trillion, to take bitcoin to $500k? That's not a small amount of money and will be easy to come by even if adoption reaches global levels in the next 5 years.
In my opinion, bitcoin can reach $500k, but it will probably take 10-20 years or more, not the next 5 years.