Elon’s tweeted that he’s working with Doge Devs to improve it’s efficiency

https://cryptonews.com/news/dogecoin-gets-another-boost-from-coinbase-elon-musk-10306.htm.

CoinGape on Elon’s 5/13/21 “Doge Devs” Tweet.

Coin Gape speculated Elon would turn to Doge after announcing he’d stop taking BTC on 5/12/21.