[mellosouls]

To be fair, there is a lot of evidence for the phenomena described as "dark matter", but as yet zero detection of actual matter that fits it's properties.

Perhaps that is the complaint here - and asking for academic background is an argument from authority...

[yes_man]

I am just another armchair physicist but saying there is no detection of dark matter sounds a bit like circular reasoning. You detect matter like your phone in your hand through electromagnetic interaction. We have detected that there is something in space that completely disregards electromagnetic force, but exerts gravitational force. Hence the idea that we have not detected it is simultaneously false in 2 ways:

- it cannot be detected the way you detect your phone in your hand or see light so your definition of detection seems to escape the basic premise of dark matter: its ability to avoid electromagnetic force, and also,

- we have detected it through gravitational anomalies

[dbsmith83]

But to be fair, you can detect the phone in your hands many many many ways.

With the DM effect, we ONLY see gravitational anomalies as you said. Though DM may very well be the reason, it does not automatically mean it MUST be some matter we cannot see

[mindcrime]

and asking for academic background is an argument from authority...

No it isn't. It isn't even an argument of any sort. I think most reasonable people would interpret that as an attempt to gather evidence to support applying a heuristic filter to the question of "is it worth my time to continue engaging with this person or not?"

[freeone3000]

So the name of dark matter might be misleading, but there is some mass/pressure/something that's causing gravitational lensing but itself doesn't interact with light.

[morelisp]

> as yet zero detection of actual matter that fits it's properties.

Except for all the ways we have to detect actual matter (i.e. gravitation) that fits its properties.

[dbsmith83]

You are assuming this thing exists because it has properties to fit your observations, and then using that as evidence that said thing exists. I'm not saying DM doesn't exist..it probably does, but your logic is flawed