He’s also still taking Covid seriously, last I heard. Plus, involved with some org working on an aerosol pathogen detection system.

Newell goes on to give some examples of what’s currently taking up his time. “In one of the companies we’re working on an aerosol pathogen detection device so you can see all the pathogens that are in the air. Brain-computer interfaces are incredibly cool and all of the associated neuroscience is incredibly cool.”

https://www.pcgamer.com/gaming-industry/gabe-newells-daily-routine-is-get-up-work-go-scuba-diving-says-hes-been-retired-for-a-long-time-but-works-7-days-a-week-the-things-i-get-to-do-every-day-are-super-awesome/