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> Are they storing all of their images in RAM?

Consider the millions of iPhone users uploading new photos and scrolling their iCloud-hosted photo library. A substantial amount of photo data is in RAM at any given moment, spread across many network devices.

> I would posit that it is possible this format is less environmentally friendly because it takes more compute cycles

I'm curious how much energy it takes to send bits over cellular or wifi, my intuition is that this is orders of magnitude higher than compression or encoding.



> I'm curious how much energy it takes to send bits over cellular or wifi, my intuition is that this is orders of magnitude higher than compression or encoding.

Correct, but the computational cost of decoding a codec is generally correlated with the number of bits. So JXL is not necessarily more expensive to decode than older codecs, if it compresses better.




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