The typical hfy story is literally:

'Advanced alien species encounters modern day humanity and is UTTERLY SHOCKED at the concept of gun. The VERY IDEA of literal basic physics and the basic concept of the most simple of weapons to a HYPER ADVANCED SPACE FARING INTERSTELLAR POWER is so beyond the pale that a bunch of humans with literal basic handguns is just able to completely repel an invasion from the HYPER ADVANCED INTERSTELLAR POWER'

And thats only a partial exaggeration really. A fucking post on worldbuliding literally went 'aliens COULDNT HAVE POSSIBLY thought of using nuclear energy for weaponry and get bodied' which, putting aside the utter brainless logic, even if they didn't have nuclear weapons, a simple fucking rod launched at earth at mach-go-to-hell would replicate the destructive power of a nuke and be easily done if the species aren't morons (every hfy writer HAS to write the absolute dumbest most moronic fucking alien species known to man because if they wrote a alien species with a modicum of intellect their entire story collapses)

The second kind of hfy story is 'humanity's strength is our unity and will power and our diversity of thought!'

Look inside:

Repackaged western exceptionalism, as in spite if depicting a 'united humanity that includes every culture on earth' ALL of the humans are suspiciously coded to be hoity toity white people with American (or British if the writer is feeling Very spicy) mannerisms and culture.

I fucking hate hfy writing couldnt you tell?

(Context: The Pesenese are four-legged arthropods who have, on several occasions, forcibly spread getting along with others to numerous neighboring star systems. They saw an episode of Cosmos once and decided Carl Sagan was a prophet.)

An alien empire who controls the entire Andromeda Galaxy is invading Earth. And they know Earth has multiple armed forces as well as several superpowered protectors.

So I am thinking this massive interstellar empire attacks Earth by sending over SEVENTEEN foot soldiers to one building in one city. And each one of these foot soldiers will be armed with an ADVANCED PLASMA rifle capable of shooting bolts of Plasma at OVER SEVENTY MILES PER HOUR, and they can fire over EIGHT TIMES A MINUTE.

Oh yeah also one of my superheroes only uses guns so the alien footsoldiers won't be bulletproof. Oh and one si a human martial artist so they won't be kickproof either.

I'm trying to get into worldbuilding but not sure how. I heard that some people like to just "write their ideas down". What's your favorite pen and paper for writing stuff? I've spent the last several weeks researching different products but I'm stuck. Comment with what you use so I can ask ChatGPT to choose for me.

Also, if I write my ideas down on paper, how do I prevent the ideas gnomes from stealing them while I'm sleeping?