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Comment Re:Complicated (Score 4, Informative) 69

This is something different.
Take the linux kernel, split it into modules such as tcp/ip stack etc.
Now you can create a binary that includes the part of the os that you need that you can include with your binary.
You then link the kernel and your application so you have one binary with the bits of the os you need as well as your program and nothing else.
No init system, no other processes just the os.
You can then run this inside xen as the target so you don't need the hardware support.

Comment Re:"Energy Balance" an overly simplistic view (Score 1) 958

While that makes sense that was the answer ~30 years ago and is completely wrong.

If you calculate the calories you eat and compare it to your usage you only absorb a fraction of what you digest (~1/4 from memory). Reducing the amount of calories in your diet does not reduce the total absorbed as there is a lot of surplus energy in what you eat.

What seems to be useful is looking at what in your food you absorb and eating high fat may actually be good for you as you don't absorb it.
Eating low fat foods is bad as they replace fat with sugar and sugar is what your body turns to fat.

Comment Re:Just in time for another price dive (Score 1) 173

As bitcoin uses public / private key cryptography you could have clients only have the public key until you need the private key.
So the client would be able to see that someone has sent them bitcoin but not be able to use them as they do not have the key allowing a store to validate that someone has sent in the coins.

Paper wallets is one implementation of this idea, where there is a piece of paper with 2 qr codes with your public and private keys.
Give everyone your public key but when you need to send the coins somewhere you need to scan the qr code to import the key.
You could probably come up with a system requiring you to assemble the private key from several parts.

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