now that is a lazy response
No, it's not. It's concise.
Since you seemingly don't like concise, you'll get a "healthy dose" of verbose in a little bit...
common sense is relative to the subculture you grew up with
No, it really isn't.
Common sense is absolutely not a "cultural" thing. People raised in Japan don't have more/less common sense than people raised in South Africa, or someone raised in the 2000's compared to someone raised in the 1800s.
What is cultural, is applying common sense. Particularly, not applying it due to laziness to whatever degree.
intuition doesn't magically impart knowledge
Nothing I wrote implies that it does, or that I am of the misconception that it does, but "thanks" for letting me "believe what I want to believe"... You clearly do.
it makes use of base knowledge you already have to formulate guesses
"Guesses" is a bit of an understatement, more like being able to know something instinctively.
It's like muscle-memory - Being able to perform an action with ease and at an automatic level, instead of having to consciously perform an action.
Being on the internet, having a question, and using the tools at your disposal to find the answer yourself.
The key part is the base knowledge aspect though. In this case, being on the internet and knowing how to use a search engine at even the most basic level. Which leads us to the long-winded but apparently necessary explanation of what I've already said...
Next, comes the common sense application - Using the tools available to you (in this case a search engine) and using the most logical parameters (in this case RPGMakerVXAce RTP), then when arriving at the download page, clicking on the appropriate icon after reading what each one says, "putting 2 and 2 together" and reaching the correct "answer". In this case, downloading and installing the Run Time Package required.