Can I use 24 gauge speaker cable?

I’ve been trying to google this but I only get vague answers.
I want to know if I can use 24 gauge cable as speaker cable. And if not: why not?
Usual answers are “no, you should use xx gauge”, but I’m looking for why is that? Will the speakers of the amp go off in flames if the resistance is too high? I don’t even get that because the resistance isn’t even that much of a difference between speaker cable sizes, compared to the speakers resistance.

I’m talking about ca 16ft / 5m distance between amp and speaker. By the way should that measure 16 ft or double (32ft because one cable is plus and the other minus)?
If Paul W. Klipsch stated in his time, lampcord would be quite adequate for speakers, great selection at Home Depot, but probably cheaper at Walmart......
Can you use 24 awg? Yes
Do a simple listening test. 14 awg from Amazon or the depot. Then try the 24 awg. See what sounds better.... No Brainer.
It is a little too thin.

Probably not suitable for an amp with more than 10 watts/channel output.
When the wire is too thin, its resistance will be relatively higher and its stray capacitance tends also to be higher. This would limit the current flow and affect the high frequencies negatively by attenuating them.

If you have an amp with any power output greater than about 10 watts/channel, you should probably use approximately a 16 gauge wire. Having said that, you do not have to buy any esoteric expensive "audiofool" wires. Any ordinary pure copper wire (NOT copper clad or aluminum) will do. Just make sure its capacitance is as little as it can be.

All in all, you should not need to spend more than 30-40 bucks on it, AT MOST.

This would do PERFECTLY for example:

or this....

#24 AWG seems to be thin. 5m is long.
Front or rear speakers?
to get the front speakers cable thickness I need your Amp's Damping Factor (DF).
Then I can calculate the thickness (AWG) with the 5m length.
Cakyol has his head on completely straight and seems to be grounded in the laws of physics. I use 24 gauge wire for one of my systems with a 3.5 watt tube amp and high sensitivity vintage (Frazier) speakers - it sounds incredible, top to bottom. Generally for higher output, I would personally go with a larger gauge - BUT nothing fancy or expensive. I have been very happy with the high quality, flexible Installgear wire from Amazon (Cakyol’s second link) on my main system (a more beefy McIntosh tube system). A friend of mine with 40+ years experience and some of the best sounding gear you're ever heard, goes with 14 gauge wire from Home Depot.  Hell, if it was good enough for the iconic Paul Klipsch, that's good enough for me.

williewonka, and several other of these bloviators for that matter, on the other hand are marinating in snake oil. PLEASE don’t get sucked into the "cable science" nonsense (non-science)! All auditory hallucination paid for with obscene amounts of money and bolstered by clever marketing designed to steal your cash. And don’t bother to argue with them - predictably, they’ll now attack my system, hearing, sophistication, credibility, etc, with zero science to back up anything they try to put forth. Just put them on mute, move on, and enjoy the MUSIC.