Interesting idea.
"A machine that makes reality"... out of what?
Does a camera create the landscape in the photo?
Which is more "real"... the photo, or the hundreds of square miles that the camera attempted to capture in the photo; of course missing nearly everything significant about it... e.g., all the interactive processes with which it teems to sustain its existence: plant, animal/insect, chemical, physical, geological, meteorological, etc., etc.
There's so much more out there, than the "reality" we are capable of perceiving.
I do think the conclusion is reasonable, and a cool thought: "...where fact flowers into meaning."
Meaning, in any sort of mystical sense, being a man-made concept in the first place.
The human mind is the only context in which meaning exists, so that's where it would necessarily be ascribed to any perceived "facts" from the mundane, objective reality outside.
But... I would not say that happens "in the skull". The skull is just where the brain is, and the brain is what we assume to be the material interface into the mind.
That's like pointing to your computer monitor as the source of this website... simply because that's where you perceive it all as "happening".
If your monitor dies, the website remains.... and your "account" remains intact, as well.
The "mind" is where meaning happens. And we know literally nothing about it.
In fact all the things that we don't know about it, include whether everybody has one of their own... or if there's really only one human consciousness that each individual "taps into" subconsciously during their short excursion to physical Life.
Or... whether you were born with a blank, and necessarily limited, "portable" instantiation of the Mind; to be filled with "facts" and personally-ascribed meanings, lessons, experiences... only to be uploaded and assimilated later when you die; or perhaps periodically, when you dream.
Who knows? We certainly don't. But...
"One day your monitor will be as empty as a piece of broken glass in a landfill..."
And... so what? Reality itself will persist, and quite possibly you will persist with it.
You make some good observations. I will acknowledge that the original post is a simplification.