How you figure? It goes up from where you bought it. Sell maybe 10%. When it goes down again buy more with proceeds from what you sold. Rinse and repeat. You end up with a lot more sats.
Discussion
How much 'up' and how far 'down' is the killer.
It is a fact, most people that try it end up with less than they started with.
The people who are doing the best are those that just accumulate.