diff --git a/doc/todo/copy_with_both_--to_and_--from_/comment_4_b4d6b876c8f36a61268e2144d3bcf082._comment b/doc/todo/copy_with_both_--to_and_--from_/comment_4_b4d6b876c8f36a61268e2144d3bcf082._comment
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+[[!comment format=mdwn
+ username="joey"
+ subject="""comment 4"""
+ date="2023-01-17T17:09:50Z"
+ content="""
+Ok, I think this should be implemented, with alternating behavior.
+
+As for disk speed, hopefully the files mostly fit in cache...
+"""]]