Do you believe that it has started? I have a good feeling that I should buy them before winter. Prove me wrong.
Just try observing the market value of most of the altcoins and there you may see if the altseason has already started. There are plenty of news already that says altcoin season is near and there's a possibility that it is occuring right now. As part of being startegic, you should have been able to hold great amount of altcoins already so that if the altcoin season has already started or it is already near, you would get the opportunity to redeem great profits from your investments.
but if you only trust the news, you should not fully, if you see altcoin growth currently not specifically. there is still time to do research before starting an investment, so that investments made can be more planned