The holographic principle is a thing. There are hypothetical descriptions of a black hole that say all of the information about the particles that entered the event horizon is spread out on a 2-D layer around the event horizon.

This math could be extrapolated to show that all of our reality is a projection onto the surface of a higher dimensional universe.

There is no proof for this. It is only a mathematical description of one of the ways our universe might look from some higher dimensional perspective. As far as I'm aware, it is based on sound science, but that doesn't mean it is true.

PBS Spacetime on YouTube did a whole series of videos on this.

There are some damn fine answers here. Lol.

Short answer is it's a natural law that has been proven.

Additionally our experiments have limits because they are imperfect and restricted by power inputs and financial resources. Improvement will only help us get closer to the max allowed by the uncertainty principle.

What kind of resolution are you looking for? How many times magnification? You can see things more than a light year away now. You can see the Andromeda Galaxy with the naked eye and that's millions of light years away.

We can't travel beyond the edge of the observable universe. That space is expanding away from us faster than the speed of light.

There's only three conceivable ways that we could ever travel outside our local group

1. we create some generation ship that travels at a significant fraction of the speed of light. It would take 50 or 100 million years for that ship to travel to the Vergo Cluster of Galaxies, which is the next closest large galaxy group to us.

2. we create some faster than light warp drive mechanism. Recent calculations have suggested that it might be possible if we could convert the entire mass of Jupiter into energy. For this we would be limited by the speed the warp drive is able to provide. If it was even some single digit multiple of the speed of light, it would still take 5 to 10 million years to reach the Vergo Cluster.

3. we create a worm hole that allows us to travel any distance very quickly. This would also require negative energy or negative mass to hold the wormhole open. We don't have a theory of quantum gravity that could even tell us if this is possible, but most current theories say that any wormhole would collapse immediately, or not allow mass (or possibly even light) to travel across it.

Keep in mind that due to relativistic time dilation, traveling faster than light is basically the same as traveling back in time. Also wormholes could theoretically be manipulated to create time portals that allow forward and backward movement in time.

Anyways, the Vergo Cluster is loosely gravitationally bound to our own local group. If you wanted to travel to a galaxy that was not gravitationally bound to us in some way, that might take 50 to 500 million years of travel (depending if faster than light travel is possible), mostly through voids of interstellar space. That would require taking the expansion of the universe into account for trajectory calculations.

Over very large distances it is. That's literally the boundary of the "observable universe". Everything past that is moving away from us faster than the speed of light.

The rate of expansion of the universe is increasing as well, so stars and galaxies are constantly moving beyond this boundary. In the far far distant future, whoever lives on earth, if it even still exists, won't have any way to tell that anything beyond the local group exists or ever did exist.

It's not hard. While some of the folks I taught this basic math to were just plain dumb, most turned out to be capable, hard workers.

I think it's more a reflection of growing up in extreme poverty, in a broken home, young gang activity or childhood immigrants that had to learn English and everything else in school.

One dude I taught fractions to was this beast of a man who just got released from several years for selling crack. This dude could pick up and carry 2 full size oxygen bottles across the yard like nothing.

He learned quickly and was super willing to work his way up. He grew up selling drugs, skipping school was in a gang as a kid and only had his mom who could barely put food on the table when he was a kid. He told me he was bullied in school for showing up in old clothes and ragged shoes and wasn't till he started selling drugs as a kid that he first could afford a nice pair of sneakers.

He eventually got picked up for selling coke one weekend, but he was a hell of a shop hand while we had him.

I had a folder with spare copies of a chart of fractions and their decimal equivalents I would hand out to people on the first or second day of training.

As someone who has worked many years in the construction industry, the number of full ass grown adults I have had to teach fractions to is triggering.

Jesus, when my engineering professors were trying to teach us "slugs" as units, I was like WTF is this ancient horse shit? Let's just use the approximate foot size of king Henry as a unit of length.

Fucking slugs. Good lord.

No. That's all backwards.

In free fall you are accelerating towards the earth (or whatever massive object). As you get closer to the massive object your rate of acceleration will actually increase. The acceleration due to gravity is 10 or 12% less at the international space station than it is on earth, for example.

You can always measure when you are in a gravitational field (or being accelerated). For that reason, it wouldn't be correct to say you don't feel any force from gravity.

The force due to gravity you feel on earth is you are being pressed/accelerated into the surface of the earth. Whatever you are standing on is strong enough to resist the pressure from you being forced into it, unless the floor collapses.

The ground is *stationary. It doesn't accelerate into you.

Stationary is a relative term that means whatever I want it to mean as long as my frame of reference is consistent. For this reason, for these examples, the earth is unmoving, stationary and eternal.

In case you are unaware, circular motion is acceleration. Technically circular motion is described as acceleration perpendicular to your direction of constant velocity.

You can feel this lateral acceleration when you are in a car and make a hard turn at speed. Your car is still traveling at the same speed the whole time but you feel the car try to move out from under you and you feel forced to the outside of the turn.

Also with gravity we feel the force of gravity pushing us downward, but we don't feel the lateral velocity component of the Earth's rotation.