Coinbase CEO has a strong message on 401(k) [https://www.thestreet.com/.image/t_share/MjE0ODk3OTI4NzE0NTk0MDg0/gettyimages-457582880.jpg] Coinbase CEO has a strong message on 401(k) Coinbase CEO Brian Armstrong calls S&P 500 listing a turning point for crypto, saying it brings digital assets closer to everyday investors and retirement portfolios. [https://www.thestreet.com/crypto/markets/coinbase-ceo-has-a-surprising-message-on-401k]