Buying Bitcoin when it is bought by whales is certainly a good idea, but nobody knows when exactly whales start buying Bitcoin, that's the problem
I don't agree with that idea, because whales buy bitcoin with the aim of gaining huge profits, even for long-term investments. Even though I, with small capital, certainly cannot survive like them, and finance for households can be messy.
It's better to follow trade in my own way, which is short-term trading where little profit is also enjoyed because the capital is also small and the important thing is there are profits every day.