I just saw someone post 70, and you're already at 90, which map is this on?

Altcoin Index 90!
To be more precise
This indicates that the overbought level compared to BTC is quite serious, and indeed many other indicators are also indicating this situation
But it does not mean that the bull market is about to end, as BTC could rise or alts could correct for a while
However, it is true that after this indicator appeared in 2021, the bull market completely ended in about 2 months.
Historical experience is for reference only, and it is still necessary to combine it with the current trend
As of now, the trend is very good, and there are almost no signals of the bull market ending.