Speaker cable length

I've read a bunch about speaker cable length and have ensured that my lengths are identical. I've wondered whether they should be short or long compared to IC's.

However, in the video I posted above, Gene from Audioholics gives an argument as to why speaker cable length does not and cannot matter to how they sound.

Most here are offering advice as if this argument doesn't exist.

So, please inform me -- and the OP: is Gene just wrong? What is the counterargument to his?

I'm really curious to know, because if he's right, it allows us to focus on other issues rather than remain debating this cluster of issues. If he's wrong, then it seriously compromises his integrity as an expert.

So, is Gene's argument flawed? If so, how? 

Going by what Gene says about cables is useless. None of the cable stuff matter to Gene. And a lot of other things.

another point of view

https://www.youtube.com/watch?v=WXPAjnmhK_g

J.Chip

I have exactly the setup that you are planning on. Keep the Left & Right the same length, it matters. That's just physics. Now people can argue they can't hear the difference but they are talking about their own hearing and not the laws of physics. Of course with that setup you are going to have on the one side a lot more cable to hide (or manage) than the other side.
For this reason alone opt for quality solid core cables that are easier to handle. Your ears will thank you as well with superior sound. Check out DNM's range and pick something you can afford. when looking at their products don't think that the cable's are specific for their amplifiers etc. That certainly true that they are designed in conjunction with everything else but they are tremendous in my setup.
Good luck with this.

Same length and not more than 10 ft after that the sound starts to degrade