A misconception about microwaves is that they need around 1000W to actually do something, anything lower than 800 makes the waves completely ineffective. When you turn your microwave to 500W, what it actually does is lie to you while microwaving only half of the time instead by cycling on and off. You can usually hear this change in the sound it makes cause it will switch between the 1kW and the ventilator. 🙂
It’s the hilarity of repetitive behavior for no obvious reason mostly, tbh. It’s admittedly something not everyone sees as funny, though… Many will see repetitive nonsense, that seems to have no origin worthy of it, as annoying and it can even drive them mad, but it’s that very thing which they find annoying what makes it funny to the rest of us. 🤷♂️
You could compare it to laughing with ironic misfortune of oneself. Some will curse after falling down the stairs, while others will find it funny in a situational way and laugh it off…
I myself can appreciate a repetitive nonsense meme that seems to be a wave through the world’s people, though. It makes no real sense, and I might even go as far as calling it sus… 😅