/th/ - Transhumanism

Two prostetic technologies I am really waiting for:
>neural connections
>getting energy from chemicals in bloodstream
And second one really looks unresearched.

>>156

He talks about them in the latter half of the video, but it's not ready yet. (The current ones simply read his muscle contractions from what's left of his legs.)

>>157

Err, the first, not the second. The second is extremely difficult because the energy efficiency's just not there. Even if they could make it work, you'd have to eat like a demon to keep your blood glucose up enough to power something like that.

>>155
cool video, the future looks bright

the only issue i had was when he suggested people with their bio body completely intact wear exoskeletons, then later admitting they suffered muscle atrophy.

i'm all for propping up the disabled, but making the healthy weak and dependent is something i'm against

>>171
thanks anon, that cleared it up.
just in the video he said that after wearing the device that assisted walking for normal people with all their limbs, their legs felt heavier, implying suffered muscle atrophy.

However, if what you said is feasible and implemented, it might solve many of the issues of zero gravity just by wearing an exosuit

>>172
>their legs felt heavier, implying suffered muscle atrophy.

That's not atrophy. That's just a miscalibrated sense of resistance. You can get the same thing in reverse by lifting; do enough curls and it suddenly feels a lot easier to curl your arm without anything in it.

>>173
>dude has devices on his legs, makes it easier to walk
>doesn't engage as much muscle in his legs as before, because machine is doing most of the work
>take device off, legs feel heavy, walking normally feels weird

Over long periods of time, wearing something that replaces your normal muscle functions will make you weak unless you engage those muscles in some form of activity. If not, you will have muscle atrophy. When you don't engage your muscles like you normally would by walking without the device, your muscles won't be used to walking normally if you wear the device for long periods after you take it off, for your muscles haven't been worked sufficiently to counter gravity like you normally would be able to without the device. This is one of the reasons why zero-g environments(or less than normal-g) is detrimental to human muscles, for we suffer atrophy for not having to work those muscle groups because we don't have to counter as much gravity. When a device is countering the gravity for you, you won't be working those muscle groups the same.

>>173
>You can get the same thing in reverse by lifting; do enough curls and it suddenly feels a lot easier to curl your arm without anything in it.

Yes, and you are building muscle by doing curls, are you not?

So what is the reverse of that? When you don't work your muscles like you would have before?

Muscle Atrophy

>>174
>>175

I'm talking short term, not long term. If you wear it once for a few hours, your muscles won't atrophy, but you will feel weird. You can feel heavier after swimming or floating in the water for a while.

>>176
Even in the short term its not engaging your muscles as they would normally be, meaning that you will later have to do more physical activity to work your muscles like you would have done normally before.

Not working your muscles results in muscle atrophy/stagnation.

>compares it again to something you do that works your body with your own muscles and helps build them.
>still cannot realize that the reverse of not working your muscles like they would normally of been worked results in stagnation or muscle atrophy.

Com'on man, this is basic.

>>177
Not after 40 minutes. Right now, get up, stand in your doorway and push your arms against it for 30 seconds. Relax afterwards and they will float up on their own accord. This isn't due to them getting stronger, it's because of the short term memory in your neural pathways. It's essentially the same thing as an afterimage (no, they don't really burn your retina). The inverse is your brain learning that you need to input a certain amount of energy in order to walk normally, and then holding on to that once you take the exoskeleton off.

>>169
Why? Who cares if their natural bodies are weak if their mechanical ones are as powerful as can be?