Long with leverage at the bottom

I want to ask people (traders more likely) who will open leveraged long, IF the bottom forms around October. Elliott wave theory with fibonacci tools really helps determine next moves, combined with proper reading of RSI, volume and 200 day MA as the potential ceiling.

So the question is what would determine that the bottom is in?

I use things I said, but structurally interesting fact, last cycle bottom was about -12% from the wave 3 of bigger C wave, 2 cycles back it was -46%. Not some certain 100% move we will get less than -12% so we could do 8x at least, but also would you use this probability as a fact about diminishing returns? And what are the other structural metrics or on-chain data you will use? Thanks