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Is delayed pain perception a problem for very tall people such as those with giganticism?

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Hop into a lab and pop the scrapings from under your nails into a petri dish. Grow a culture. Then come back and ask me again.

You should be washing your hands before you eat, but given that 70% of the population doesn't do that, and that only 13% of the remaining population use soap, it's unlikely that's happening.

>As long as you're not using nail-biting as a nervous habit

... for what other reason does one bite their nails regularly?

>and biting them past the tip of the finger, it shouldn't hurt the nail.

My comment was about the ingestion of fecal and other bacteria from unknown sources as it gets stuck under our nails in our daily lives. Door handles, light switches, debit machines, etc... When I work on people's vehicles, I wear gloves when handling their keys and anything inside of the vehicle because people are gross.

Also, cutting or biting a nail too short (which the definition of varies from person to person, and it isn't always to or past the edge of the bed) can cause growth issues depending on the frequency and mechanism of damage.

>And putting your finger in your mouth is extremely common.

It's a habit which ought to have been broken by the time one has hit adolescence. It shouldn't be extremely common, especially given the rapid mutation of communicable diseases right now.

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>The flu is much less contagious. It spreads only through droplets... Droplets also fall to the ground quicker than airborne particles

This is not confirmed. Flu is also known to spread via aersols: https://www.cidrap.umn.edu/influenza-general/study-confirms-flu-likely-spreads-aerosols-not-just-coughs-sneezes

However, flu does appear less contagious than SARS-CoV-2 but there are many possible reasons why (fewer days of infectiousness, flu is more susceptible to the body's defense, more viral load needed to induce infection, etc.)

Flu being spread mainly through "large droplets" and "large droplets" not being airborne, was the result of a medical community mistake where droplets above 5 microns were labeled as large and unlikely to remain airborne. The actual size is closer to 100 microns before a droplet readily falls out of the air. Thus many, many more droplets are actually airborne than first considered. Thus even if flu requires larger droplets it turns out those droplets can actually behavior as airborne. https://www.wnycstudios.org/podcasts/otm/segments/five-micron-mistake

Overall flu is less contagious but probably not because flu transmitting droplets are not airborne. They probably are.

How do they get synchronised? Is it just a matter of there being discrete time steps when the signals get processed? Do the time steps get longer as you grow taller in order to accommodate the longest nerves?

>First off, please stop chewing your nails. Seriously, the amount of unsavoury sh!t you literally have under your nails would make you retch if you knew. Please stop putting that in your mouth.

Is this really going to cause any issues? You use your fingers to pick up food you're about to eat all the time. As long as you're not using nail-biting as a nervous habit and biting them past the tip of the finger, it shouldn't hurt the nail. And putting your finger in your mouth is extremely common.

How profound an effect would simply giving a modern physics textbook to Newton be?

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So, let's say traveling at 100 km per hour, you would travel 1 meter less if brakes could be applied by hand instead of by foot?

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>The flu is much less contagious. It spreads only through droplets.

This has long been accepted wisdom, but isn't true. There was a misreading of a study decades ago, so public health folks thought aerosols were much smaller and less numerous than they actually are (was long thought they were 5 microns. They're more like 100). Our public health guidance has been misguided for a while.

The pandemic helped bring this to light, but unfortunately it seems that the message was 'covid is uniquely airborne!' and not 'aerosols are far larger and more numerous than we'd wrongly believed, and aerosol transmission is more important than we've thought - for all respiratory viruses.'

Here's a good summary of what we relearned during Covid:

https://www.wired.com/story/the-teeny-tiny-scientific-screwup-that-helped-covid-kill/

And you can find plenty of older studies that point to more aerosol transmission.

the others have given you the answer but I just wanted to point out that your logic is absolutely correct

that's why all the ancestor-related stuff always specifies "most recent". Otherwise you'd have to enumerate all the ancestors of the ancestors every single time

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Well if we didn’t have it in the past we likely wouldn’t be here today.

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> Under the laws of special relativity an observer in a space ship travelling at 0.1c will see Earth speed up, while an observer on Earth will see the ship slow down.

No they won't. They'll both see each other slow down, since motion is truly relative. From the perspective of the Earth, the ship is moving away. From the perspective of the ship, the Earth is moving away. Neither is right or wrong. Both see symmetrical time dilation.

The unintuitiveness of this fact is why the twin paradox is so famous, despite not really being a paradox: https://en.wikipedia.org/wiki/Twin_paradox

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