Please tell me this is a list of cliche's and related to Bright's challenge.
If not… Please go read the cliche list.
constructed from an unknown material
Here we go…
proven to be completely impervious to damage
No thank you.
There is already an SCP that does this, and is probably better than this.
the doors of the container act as a portal to the interior
There are already a city full of portal SCP's that do various weird and odd things, they are pretty much better than this
the entire Experimentation Log
Look, this does't make it more interesting nor does it tell us more about it than we already know.
To be frank, the idea of being alone and confused and frightend in a room for all eternity, isolated so that no matter how long a person screams no one can hear him, whatnot, sounds great. However, all the OTHER things tacked on detract from that potential horror, until you just have a mess of 'interesting' details that lose the core of the SCP- a box that messes with time when you shove people in it. It also brings up the question do they just sit there, do they scream or cry or scrape against the walls so hard their nails break? If it were mere after a time i would be writing 'time time time' and various clocks in various positions with my own blood evrywhere because isolation does horrible things to a psyche. If a person became a child would they remember everything that had happened to them prior to their age-change or do their memories revert? If a person stays there long enough, what happens if they need to poop or pee? What if they're hungry or thirsty?
SCP that buries its hook with a buncha unnecessary details. Downvoted.