I have seen a lot of controversy about whether or not more expensive cables are worth their price, and the argument that comes often is that digital signal is just bits (0 and 1) and is therefore not degradable. And while I’m attempting to settle the “expensive versus cheap” cables debate, I would like to comment about this notion.

A digital signal is by nature more “resistant” to degradation, but it doesn’t mean that it is immune to degradation. With an increase in the length of the cable, and in the frequency (how fast the signal switches between 1 and 0), errors can be introduced, bits might be lost and sometimes error correction protocols might not be able to fix them. For a video signal, this might produce randomly blinking pixels (which would be more visible on a very large screen/projector), blocky corruption artifacts or plain black screen. However, it *cannot* produce a fuzzier image, like a “bad” analog cable might.

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