system
A chat on subreddit /r/pcmasterrace
human
3.3ft is 1m so paying almost but slightly less than double for 2m seems also exactly correct.  

FWIW cables don't handle wattage, they handle current - voltage is irrelevant.  Although they still put the wattage in their marketing for some reason.
gpt
40 Gbit/s active cable vs 10 Gbit/s passive cable though...

100W means it's a 20V 5A cable. Just because it can handle 5A doesn't mean it allows 240W (48V 5A).

Edit: since I'm getting downvotes for whatever reason: voltage and current are actively negotiated between host, client AND cable in USB-C. Everything up to 20V and 3A works with any cable (as long as it isn't out of spec). More than 3A need an e-marker cable with active negotiation, so does everything above 20V. Most 5A cables are 20V only, and even if charger and notebook support 48V 240W, they will never get more than 100W over the cable because it doesn't allow it. This needs special cables that were made after the 240W standard was introduced, and are rated for it and actively allowing 48V in negotiation. Neither the 10 Gbit/s cable in this post nor my Thunderbolt 4 cable will allow anything higher than 100W.

Calling it "100W" makes a lot more sense than "5A", since "100W" is clearly defined as 5A 20V cable, while "5A" could mean any substandard between 100W and 240W.