If the knowledge is sooooooooo common, then why did you refer to it in the singular?
e.g. : "5g runs on 1mm wavelength"
Here is a more likely scenario : You actually took the time to look it up after I beat your ass bloody, and didn't like looking like a total f**king moron.
I got it right, you got it wrong. Don't come back and act like you knew it all the time, because the evidence shows YOU DIDN'T HAVE A F**KING CLUE.
You are a moron. There is nothing you can do to erase that fact. Man up, apologize for being a f**king moron and own your stupidity. That's what a real man would do. I don't have a f**king clue what pansy-assed, immature, baby bullshit you are going to pull.