Dogma rules

This is my dogma rules according to audio

1. in the early days the most important stuff was in the end, like cartridge and speakers. A bit different today in the digital era., so its just in the end end :)
2. Its impossible to notice any difference between power cables (how about cables before the socket?)
3. It’s almost impossible to detect any difference between any cheep and very expensive low signal cables. If the cheep cable is a low capacitance then its impossible.
4. For speakers cable, if the area is not to small then a cheap simple electric cable is indistinguishable from an expensive one.
5. since about year 2000 or a bit earlier compression is doing more harm to music than anything mention above, it’s horrifying that “audiophiles” use these compressed cd’s as reference cd’s in listening tests

comments?