To add on to this data point my color perception for right and left eyes are slight different, particularly around red hues. So there isn’t 1:1 overlap between same retinal points

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He was just building on the science of the time and came up with it theoretically. They already had a good understanding of molecular bonds, how to determine different elements in molecules, and a pretty good concept of what made molecules more stable. He just assumed the product would be the most stable form and worked out on paper what that structure would be with HBr and an alkene and we later confirmed it. I don’t think it was really “lucky”, it was right because he formulated it based on what other scientists before had experimentally confirmed about molecular structure and organic chemistry.

There's some dropoff over time even against the same strain, but there's also better immune response after more exposures. The first COVID shot was two doses because testing showed a better immune response for two doses at a certain concentration several weeks apart, rather than a larger dose one time.

Also the eye has a different perspective and you nose it always visible, you brain does a lot of filtering and selecting of what you see. The fact that everyone has a dominant eye means that the brain picks and chooses what information it needs, and does not rely on a 1 to 1

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yes, basically. there is a precise correspondence (the term for it is... "retinal correspondence") between positions in the two eyes.

deviations from this correspondence, within a limit (usually called Panum's area), allow for stereopsis, depth sensation from small differences in the retinal positions of features.

if a feature falls precisely on corresponding positions in the two eyes, it will feel like it's at the distance at which the two eyes are converging (called the horopter). if the feature falls at slightly different positions, laterally displaced, this is "horizontal disparity", and then it feels like the feature is nearer than or further than the horopter (depending on the direction of the displacement).

if the displacement is too large, it exceeds Panum's area and the feature cannot be fused between the two eyes, and you will see the feature twice, in two laterally displaced positions ("double vision").

this binocular correspondence begins as soon as the optic nerves enter the brain: the two optic nerves meet in the thalamus (or thalami), where corresponding positions are brought in physical register - from there, still separated, the two eyes' signals project to similar positions in the visual cortex, which is essentially a big map of visual field positions, where after a few synapses they are largely indistinguishable.

Decreased transit time and this with increased osmotic pull is responsible for intraluminal fluid accumulation, aka diarrhea. Gas production from increased bacterial fermentation is also increased causing bloating and flatulence.

Either you were taught wrong or perhaps you misremember. Some of the first vaccinations in the late 1800's were for bacterial diseases. For example, Pasteur's Antrax vaccinations

Pasteur made vaccines for cholera (edit: fowl/chicken cholera) and anthrax (both bacterial) in the late 1800s.

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They're not tied together.

Half of each retina goes to each side of the brain. So half your right eye goes to the right brain, other half goes to left. Same for your left eye.

The brain integrates the signal from both eyes to form a cohesive image. The neurons aren't directly tied to each other in any real way except being bundled together in the optic nerve and terminating in the same region of the brain.

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Is transit time increased or decreased?

A vaccination can be for anything for which you want to "prime" the immune system. Priming means exposing the immune system to something which will produce a condition where the immune system can respond more quickly when it encounters that something again. In theory, we could get vaccinated against fungi as well but given that they are evolutionary far closer to animals than are bacteria or viruses requiring the vaccine efforts to focus on specific differences (e.g. cell wall sugars in fungi). Even so, there may be problems with, for instance, creating food allergies (we eat a lot fo fungi and fungi are close to plants evolutionarily).

There's a fungal vaccine in the works now, too, that is showing great promise for a condition known as valley fever. While they're focusing on dogs to start, the condition also affects humans, and the vaccine may be helpful for us, too.

the brain get used to position of the eye and process the image as it supposedly be. if you chance position of one of them, the brain will eventually adapt to it. so no, neither neurons nor cones/rods do not respond to single binocular neuron. all information that comes from eyes get processed whole single block of info.

But some immunity fades even for the same strain. That was the reason for the first COVID booster. They couldn’t guarantee if would last longer than six months.

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