Pieter Wuille

Sad to see this slip, but given the amount of changes and discoveries that necessitated them even in just the last week, it's probably the right decision.

The PR title may need updating, as `-maxorphantxs` is gone now.

@instagibbs Ran your benchmarks with `-min-time=1000000` (so for ~18 minutes each) on a Ryzen 9 5950X CPU: | ns/op | op/s | err% | total | benchmark |--------------------:|--------------------:|--------:|----------:|:---------- | 8,005,268.73...

Please let me know if this is already implemented, being discussed elsewhere, or if this is not the right place for it. Would it make sense to (not now, or...