>>3339389> Why aren’t camera manufacturers investing everything on this?Because modern EVFs are superior in every way except one, manual focus accuracy. Not beats a split focus screen. But since almost everything is autofocus, and most DSLRs no longer come with a manual focus screen or the option to change to one, this doesn’t matter. Plus a lot of the focus aids in an EVF (peaking, focus assist) gets you damn close.
>Taking the best of both worlds with DSLR and Mirrorless, creating one unified hybrid camera that has all the advantages of either?In theory, yea. But in practice you end up with a shitty combination of the negatives of both. Just look at the X-T2 and x100 to see how terrible it can be.