We can try to compare the Bull Run of 2017 to our current situation using these 2 screenshots I made with TradingView :
For the 2017 Bull Run, the 2013 ATH was broken in March and April 2017.
For the 2021 Bull Run, the 2017 ATH breakout occurred in December 2020.
We therefore observe a delay of 3 or 4 months for the triggering of this signal between the Bull Run of 2017 and the Bull Run of 2021.
We can see other similarities on these two screenshots like the outperformance of Ethereum against bitcoin.
Besides, I do not know when this outperformance will end. And I can't say for sure that the Bull Run will continue (I think the Bull Run will continue but that is only my opinion and I could be wrong). But it is likely that a significant correction in Bitcoin will mark the end of the alt season as in 2017.
With each Bull Run there are more people interested and involved in the crypto market. There are also more and more different cryptos.
But for this Bull Run, it is possible that new cryptos linked to the DEFI and NFT sectors imply greater cyclicality within the crypto market.
This is not investment advice. And the possibility that I'm wrong is also to be taken into account.
The crypto market is young, volatility is high, do your own research and measure the risks before making a decision.
Thanks for reading my post and happy earnings :)