Can harm be undone?
Harm can be repaired, and only in one place, on the record shared with the people it landed on. A burden written onto a record somebody else reads cannot be discharged in private. Somebody who hurts someone and then spends ten years becoming a person who would never do it has done real and costly work, and the entry between those two people carries the value it carried on the first day. Self-improvement is no substitute for repair. Repair means writing that entry, by confessing or by paying back. In Butte, Montana, a century of copper mining left acid water filling an open pit, and since 2019 a plant has pumped and treated it. The load has an address, and the address can be reached.
Also in Chapter 38: Why Does Anything Try to Persist?.
This answer comes from OPH, Observer Patch Holography. OPH is a rigorous, consistent and complete description of the unified, self-creating computational Universe we inhabit. Its consistency is machine-checked: the fixed point at its core is constructed explicitly, and a theory with a model contains no contradiction.
To understand OPH and check every step yourself, start with the free book Reverse Engineering Reality. It builds the theory from the ground up, and the OPH Notebook answers your questions while you read.
read the free bookask the notebookor ask sage:read chapter 41: What Does a Repaired World Look Like?watch a universe make its own particles