I'm starting with the basics here, namely the shortest possible length there can be. Known as the Planck Length, it a dinky little bit of volume which we'll call a "quantum". A quantum being a sphere of 3 dimensions no greater than one Planck Length in height, width, and depth. Our universe is made up of quanta, and those quanta come in one of two states, the low energy "flat" and the high energy "fold".
Space-Time can neither be created or destroyed, only switched from one state to the other. In addition, ST can only be in a fold state when it is sufficiently compressed. When there is no compression then there can be no folds.
In addition, in as much as the universe is one solid sphere of space-time the quanta within can't move in and of themselves. But the states can. What that means is, a fold state can "hop" from quantum to quantum, with one quantum "unfolding" and the next in the path of "motion" "enfolding". However, quanta resist change, and it is this resistance that disturbs the quanta around the fold in "motion". At this level it is this disturbance which produces the force we call "gravity".
There is more to be said on the forces, but for now we'll leave it at that.
In the link just above Dr. Ketchum presents her conclusion regarding the Sasquatch. Her conclusion is wrong, and that she is wrong is used by some of her critics to support their claim that she has to be wrong about the existence of Bigfoot. There is a term for this, the Fallacy Fallacy, in which the fact that one party is wrong about one thing means whatever else they say has to be wrong.
Now Ketchum doesn't help her cause any through how she handles the data, in how she frames it. The presentation is crap and she assumes too much. Back when her findings were first released a skeptic had a look at them and found that the DNA found included a lot of gorilla DNA. This tells me that bigfoot has a common ancestor with the gorilla, which is what you'd expect given that both are great apes.
As I recall the skeptic concluded that Ketchum has to be wrong about the existence of the animal, based on her being wrong about the animal.This falls under the Fallacy Fallacy. In short, he came to a wrong conclusion because she made a wrong conclusion. In other words, he let his prejudice lead him astray.
He's not alone, there are others who insist that something just can't be all because another party made a mistake in one part of their conclusions. And very often it's because the overall finding is something the skeptic didn't learn in school. It comes down to this, we make mistakes because of our limitations. Limitations that mean we can't know everything. We can at best know but a little of our world, and the rest will remain a mystery. But some just can't accept that, for they are so insecure as to need absolute assurance.
And it's not just in primatology. Physics is rife with it, with parties insisting on complications in their models, when the best way to understand what's going on is to accept that it's really quite simple, and that what we can see at present has layers beneath it. The foundation of the Quark is the String. Now what is the foundation of the String? For Strings as I've seen them presented are just too busy to be the foundation. Hadrons are badly focused blurs, Quarks are badly focused blurs. I suspect that Strings are badly focused blurs, and what they are made of are yet even more badly focused blurs. It isn't until you get down to the bottom of things that you can an object that is simple and which constitutes the foundation of what all we know of.
And I suspect that this object is more a state spacetime can exist in, a state that in motion "disturbs" the spacetime around it that is in a different state. To add to this, it is my suspicion that there is a minimum size below which there can be nothing smaller. Which is to say, our existence is based on quanta below which we can not go. That is how I understand quanta, a part of spacetime and not in truth separated from it.
But anyway, whether we're talking about zoology or physics, we need to accept that we can be wrong, and that we are wrong. I suspect that Strings are not the bottom of the pile, and I have concluded that the Sasquatch is a great ape living in North America. This last based on what evidence has been provided, and on what I know of the land of Beringia, which is at present partially flooded.
In this article it is reported that the nucleus of the typical atom is under great pressure. Greater than that of a neutron star. We also learn that the hadrons in a nucleus are also smaller than they are "free range". That is, outside a nucleus. We also learn that at times hadrons in a nucleus will "overlap", two of them occupying the same space at the same time.
Thing is, physical objects don't exist. Not as we think of physical objects. What you're seeing is a mirage, an illusion. Something we perceive because of how we can perceive and how we are equipped to handle the data we receive. Get right down to it, those two overlapping hadrons aren't really overlapping, it's their constituent parts that are occupying the same space because the vast majority of a hadron is empty space. Other hadrons are ordinarily excluded thanks to something that excludes them, it only when the pressure from the outside overcomes the exclusionary pressure that the two "merge".
There is more I can say about this, but that needs to be composed. Just keep in mind that everything is empty space, it's just that this empty space comes in something like two different flavors and those flavors do interact.