If there is a god but it fails to reveal itself to humans in a way which cannot be denied, and there are serious consequences for unbelief, of course the question matters.
I've not known anyone who has had an experience of God involving literally hearing him and/or seeing him/her and would be extremely worried about my health if I heard a voice or had a vision! That sort of thing I've read about but not experienced and am quite sceptical of some of the stories that circulate. Most of us don't look for that, frankly. There are personal revelations, times when things fall into place; I've heard it described as, "Walking through a door" which fits for me too.
Sword asked:
"So, to use your own words, what would be for you "clear without equivocation"?"I presume you would want tangible, physical proof. You aren't going to get it, floo.
It's not my belief that there are dire consequences for someone who honestly cannot believe. Having been like that myself for many years, though I was always open to belief and wanted it, it was all too difficult, a real struggle. The Lord wouldn't have condemned me for that.