How to discuss religion with believers?

[T0 Th3 M4X]

The evidence you're claiming is inconclusive and literally filled with holes.  To fill in the holes, they have proposed dark matter.  They propose that around 85 percent of the matter must be dark matter, yet nobody has been able to show any.   Seems like an exceptionally big problem.

This is just Nonsense on Parade:

Wikipedia -- Bullet Cluster

That's conjecture and uses circular logic.  It doesn't demonstrate dark matter.  It assumes dark matter and uses bullet clusters to try and support that conclusion instead of using bullet clusters to prove dark matter.

If I put out a mousetrap (system), it doesn't prove there is a mouse (object) in the house.  The idea of a mouse doesn't prove the system.  The system proves the mouse by identifying it.  As such we can conclude the mousetrap as an effective system.