> In a way it is dark matter, as dark matter was the name of the hidden variable in the cosmos responsible for the rest of the gravitational interaction that we

> In a way it is dark matter, as dark matter was the name of the hidden variable in the cosmos responsible for the rest of the gravitational interaction that we see. They're not the same, because the missing baryonic matter doesn't explain the observations that we attribute to dark matter. The missing baryonic matter problem is in addition to the dark matter problem. The most recent episode of Ask a Spaceman covers this, in case you're interested: https://www.pmsutter.com/shows/askaspaceman-archive/2020/5/20/aas128-where-did-all-the-baryons-go https://www.pmsutter.com/shows/askaspaceman-archive/2020/5/2....