Positive on the air, in my opinion, indicates an early correction, and not a quick recovery))) Five years will be enough to return to today's levels)))
Yes , for the issue of big hacking of Ethereum it will take much time for the ethereum to get back in its ATH price before .Maybe that 5 years may we see some improvements in security of ETH and its new high price .
Strengthen its security should really be the main concern here and this should be resolved as fast as they can specially to those 3rd party developer who do make use of eth based platforms in able to avoid such hacking incident along the way because when i saw that theres a hacking incident do happen on eth ecosystem it does really somehow affects it credibility. Reaching its ath again would really takes time for sure.