[dumpsterdiver]

Well it's essentially just a placeholder name for what we don't know ;P

Along a similar vein, I find the concept of "Dark Energy" really hard to swallow. To me it seems like such a bizarre assumption to assume a force akin to anti-gravity instead of assuming plain old gravity.

[websitejanitor]

Except that dark matter is often described as exotic and actually existing but not yet discovered. And I'm not talking about the publications that platform charlatans like Michio Kaku