This is not altseason, this is crypto season and there is a difference between those. What is the difference? When the latest bull run started, bitcoin was around 5k but reached 10k quickly, after that we had a whole run towards 64k right? Well, ethereum for example (can put any altcoin in there instead) ended up working towards 1500 or so from 150 dollars level at the same time, even reached 2-2.5k levels at the peak of 64k, then bitcoin stopped, bitcoin price started to even drop, but ethereum went as high as 4k after that. THAT is altseason, because it means that bitcoin is not the cause of the increase and alts are doing it all by themselves.
If you end up with higher and higher bitcoin, then it is not "alt" season because bitcoin is increasing as well, that makes it a whole crypto bull run. The moment bitcoin stops going up but others keep on going up, that will be alt season.
We can observe now that the crypto market booming as a whole and this is a good indication because people are not only focusing on a certain name of cryptocurrency but it focuses on the whole platform. Today, we can see that more and more people are getting interested in cryptocurrency and because of this we can expect that the season of cryptocurrency will continue to rise. However, we can't also deny that we set a gap between bitcoin and altcoins which we were always see bitcoin as a dominant crypto but today altcoins were doing great to be honest.