Measuring in bytes is not fully correct file must have minimal information possible too

[istarkov]

for example https://github.com/mathiasbynens/small/blob/master/scala.scala example

class m

have amount of information ie shannon enthropy 2.52bits

so better will be

class s

it has much more less information 2.13 so better

Imagine you need to compress all that files, files with less information will be better compressed, so will have a less size.