The first ASIC came out in 2013 https://www.coindesk.com/tech/2020/04/26/the-rise-of-asics-a-step-by-step-history-of-bitcoin-mining/
It was more profitable to mine alts in 2014 already, like Litecoin
The first ASIC came out in 2013 https://www.coindesk.com/tech/2020/04/26/the-rise-of-asics-a-step-by-step-history-of-bitcoin-mining/
It was more profitable to mine alts in 2014 already, like Litecoin