No one knows that's the point. When investing in Bitcoin or any volatile asset, one should understand that there is no guarantee that they are going to get a certain percentage in returns after a specific period because the price is unstable and unpredictable, it's priced above $70k today, it can be above $100k in the next few months or be below $50k by then because we can't know which direction the market will move in and how people would react to certain events in the future because that is how the market moves.
So even though investments in Bitcoin can garner great profits in the long-run, one needs to understand that it can take any amount of time for that to happen which can be a week, a month, a year, or maybe more sometimes.