> more precisely, "if we assume dark matter is a form of matter that behaves like normal mass in all ways except that it doesn't interact with light > you make

> more precisely, "if we assume dark matter is a form of matter that behaves like normal mass in all ways except that it doesn't interact with light > you make it sound like scientists are making things up rather than just doing experimental science No, I have a ton of respect for the process and experiments done so far. I’m reminded of early attempts to understand Mercury’s orbit - there must be some massive body in the glare of the sun perturbing its orbit! (Is the extra body orbiting inside the sun, what is going on??) The possible explanations became increasingly out-there, until Einstein extended our theory of gravity and introduced spacetime. I appreciate that we’ve tried and failed every which-way to modify gravity on large scales to make this work, but how close are we to saying we’ve tried every which-way to detect this supposedly normal mass? There may be a deeper insight to the universe we’re missing, and it’ll take another general-relativity-spacetime-style revolution crashing into astrophysics before we figure it out.