You can't prevent us from saying that because technically, 'there's no bad or good time to invest in bitcoin'. All that matters is your strategy, what are you intentions of this investment. Are you planning on trading or Holding onto your coins for longer term. Having a clear objective will increase your chances of making a favorable decision. The market is looking too fragile of recent, the volatility of bitcoin has increased so has its dominance in the market.
This development only means the chances of it falling is certain, if your intentions are to hold bitcoin for a longer period of time then you can't just jump right into securing your spots at the moment. Be patient with the market as opportunity will present itself that will give good position to enter and hold through all it's down side.
As for the trading, you can do that with the price different that occurs regularly. Traders don't have an idea moment to enter the market, they can profit from all the movement the market makes irrespective of the direction.
You are 100% right, it is obvious that there is no good or bad moment to invest into bitcoin and that has to be the right answer, generic answers are generic for a reason, all the cliche things life are cliche for a reason.
Plus it changes from person to person as well, amount to amount, period to period as well. I would say big corporations going into crypto right now when the price reached 40k, is not a bad idea, because they have soooooo much money and they can just hold it, even if it somehow falls, they could buy even more and more to make their average lower, they have nothing to worry about.
But a very poor person end up paying for bitcoin with debt? That is a huge no no and nobody should do it. At the end of the day as you can see it changes from situation to situation and that is why we have to say "there is no good or bad time to buy bitcoin".
I think what the OP's trying to say is that, he is looking for indicators and such valid points for him to condition himself to reinvest in bitcoin. Like graph comparison from 2017 to the current, or investments from bigger companies, or explanation on why expecting bitcoin to continue to rise in the trend. That is why the OP specified it implicitly.
Just like what I've seen in this thread, there are different views regarding the situation of the price of bitcoin. Some are saying that there is a less chance for it to increase, while others saying that there is long way to go before it collapses. Ergo there is a good and bad time to buy, but the thing is, we can't seem to see when will it happen. We can just envision and predict everything, so most probably the decision will still be in your hands' wether you believe if it is a good or bad time to buy.