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by kentonv 3572 days ago
Endianness applies to both! Or, it should, if you're being consistent. It makes no sense to say that the first byte is the most-significant byte, but that bit zero is the least significant bit of the byte.

Because all modern computer architectures assign addresses to bytes, not bits, it's up to us to decide which way to number the bits. But we should always number the bits the same way we number the bytes.