Fair question. I like it!
The things I'm pretty sure of fall squarely in the realm of F&B: it is not necessary to invoke any assumption or belief in the paranormal to account for them. I did not always see it this way. I had no scientific way to account for most of the pieces. Science papers (published) I've since found on the internet seemingly provide a way to account for those things. Still, while the components are known and proven, no single organism that I know of has all of them.
I assume F&B but I can't outright reject the possibility of paranormal. I keep an eye in that direction, whether I believe it or not, because if it were true, the implications are to large to ignore. I don't intend to ridicule people who believe some things are paranormal, I just note that a lot of them don't seem to have taken time to really look hard into less .. astonishing .. explanations .. and prefer to jump to what seem to me to be unwarranted conclusions.
There is some weird stuff that SEEMS to have happened but it may be a matter of over-connecting dots that don't actually belong together. I have to leave that over in the "shaky stuff" pile. I don't want to discard it 'cause a couple more piece might make it fall into place such that it means something profound scientifically, yet I don't want to include it too much with what I'm fairly sure of and contaminate that with stuff which doesn't actually belong .. yet. I call it segregated but not discarded.
An example: one of those things is apparent communication of information across longer distance in shorter time than we can account for with today's understanding. Alternative could be changes in my perception such that no matter where I go, it SEEMS as if the info is there ahead of me but rather, it's just ME that is traveling. Dunno. Not totally comfortable with any answer.
MIB