Well bro, you can do whatever you wish, but long-term investors, especially those who are new into Bitcoin are doing themselves great de-service by waiting explicitly for the dip to buy, what would they be doing from now until the dip? Just watching and speculating on Bitcoin price?. As long as they're going to be investing in a long-term, and they've discretionary income available,  the best thing is to kickstart their investment and keep it running, before that dip, they would've bought some good quantity of Bitcoin and they would still have the opportunity of buying those dips since their long-term investments would definitely cut across bear cycles, but they need to start accumulating Bitcoin and not waste time unnecessarily speculating on Bitcoin price and waiting for the dip.

Waiting explicitly for the dip can be validated for investors who are much closer to their accumulation target and are still far from their holding period expiration and also have good quantities of Bitcoin in their portfolios, they can save and wait for the dip and lump sum to get more quantities  at reduced prices and keep drawing closer to their accumulation targets.