In addition to what others have said about Loss, the text of the tweet is referring to the Long Term Nuclear Waste Warning message from the early 90s
This place is a message…and part of a system of messages…pay attention to it!
Sending this message was important to us. We considered ourselves to be powerful culture.
This place is not a place of honor…no highly esteemed deed is commemorated here…nothing valued is here.
What is here was dangerous and repulsive to us. This message is a warning about danger.
The danger is in a particular location…it increases towards a center…the center of danger is here…of a particular size and shape, and below us.
The danger is still present, in your time, as it was in ours.
The danger is to the body, and it can kill.
The form of the danger is an emanation of energy.
The danger is unleashed only if you substantially disturb this place physically. This place is best shunned and left uninhabited
One time I was just trying to do my money laundering restocking in GTA:O (iirc it was money laundering, it was whatever business you got when the game went free on epic games) and a guy on the flying motorbike killed me for no reason and it wasted a ton of time, eventually I killed him back and he spawned in the desert in front of me so I spawn killed him until he apologized.
I’m not saying what I did was right, I did it in the heat of the moment. But man, that game is really good at making you mad at people.