This reads a little bit snake oil salesman'ish.
We don't know what will happen in the future to be honest, maybe it will fly to 100k then come back down to 7k - saying it is the last time.. no way of knowing that.
Just what like other poeple say, what go up, goes down. What go down, goes down. We can't predict the future, we just need to be ready, for me, it's always good to accumulate.
But at least if you try to predict then I'm sure you'll get a profit from it. Being hodler is good indeed, because you will know how bitcoin growth up in the future. Let say if bitcoin up to 100k just in one night then you predict it so as you know the price will continue to down and you decide to sell it and intend to buy in the buttom. With the result that, you have 100k for buying bitcoin at 7k, so can you imagine how many profits that will you get? I guess it's a lot. So, prediction will make you comfortable when you have an investment.