[jb1991]

The A in Arc stands for "automatic."

But you are right about memory usage and battery ... this is why iOS devices require less memory than Android devices for comparable performance (or better performance in some cases).

[galangalalgol]

The confusion might arise from the fact that for a rust arc, the a does mean atomic.

[kaba0]

Well, automatic doesn’t add much to the picture, it’s more of a marketing name. But you are right, I used rust’s terminology here.