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Re: Versioned pointers: a new method of representing snapshots

Daniel Phillips wrote:
> I wouldn't have guessed it.  How so?

The Xanadu team did a lot of work on versioning using tree structures;
I'll have to hunt around to find the relevant documentation.  See
especially the POOMfilade (Permutation Of Order Matrix Enfilade) which
provides a Variant - to - Invariant address mapping and vice versa.
Invariant addresses are analogous to underlying storage addresses, while
variant addresses are the logical addresses providing one or more