That's essentially the approach Monero has taken. From [1], > In sum, we strongly believe that it's beneficial to preserve our ASIC resistance. Therefore, we w

That's essentially the approach Monero has taken. From [1], > In sum, we strongly believe that it's beneficial to preserve our ASIC resistance. Therefore, we will perform an emergency hard fork to curb any potential threat from ASICs if needed. Furthermore, in order to maintain its goal of decentralization and to provide a deterrent for ASIC development and to protect against unknown or undetectable ASIC development, the Monero team proposes modifying the Cryptonight PoW hash every scheduled fork, twice a year. [1] https://ww.getmonero.org/2018/02/11/PoW-change-and-key-reuse.html https://ww.getmonero.org/2018/02/11/PoW-change-and-key-reuse...