Looking forward to more and more discoveries and theories coming up in this field. Apart from providing a satisfactory answer to the quandary of "fine-tuned Universe" problem, there has been some observed anomalies for which multiverse theory provides explanation.
The problem with physics is, that it went into the wrong direction in the last 100 years and as a result, everybody which looks beyond pop science papers knows, that it does not fucking fit.
The fine-tuned Universe is a Problem of the model and the requirement of dozens of free chose-able variables required to make the model fit observations should give you a red sign.
And even then it's a bad fit, in very aspect. 10%+ difference in calculations vs observations is a pretty strong hint that your model is far from reality.
The model I'm following does not have dark matter, because it does not require it. I have also expansion of the universe, without abstract higher dimensions etc. But of course, this can not be done without breaking paradigms and this is the problem.
Physicists have shown to be tho most short sighted and ignorant scientists of all:
https://en.wikipedia.org/wiki/CMB_cold_spot
https://en.wikipedia.org/wiki/Dark_flow