@Khandro
I was going to say that no-one gets their gong without experimental evidence to back up their postulation or assertion but, then again, Albert did it with no practical experimentation of his own.
Perhaps uniquely, work which is almost entirely mathematical lends itself to disassembly and peer review by any with the required ability, so the business of replicabilty of methods and results can be straightforwardly achieved, albeit on paper, instead of in a laboratory.
If you spot ones which are assert things with precious little evidence, then by all means name names, so we can judge for ourselves.
I moaned about god-believing scientists the other week. It is a pity they don't drop their nominate field and spend the rest of their career seeking and revealing, to the rest of us, their experimental evidence for god. The money/mouth interface, if you will. It's a bit more dignified than hedging with Pascal's wager. :0)