Hodl approach for a long time will become a great strategy to make profit without taking the risk. Not every time hodl approach will help you to make profit but most of the times it will help you to generate profit.
If we look at btc's history we can conclude it's a fact that holding bitcoin pays off, the exception at the moment is if you have bought btc around 20k (realistically at 7k or above now).
But who knows what the future will bring
