Fun with time travel: retroactive data structures in Python (github.com) 79 points by puremachinery 11y ago ↗ HN
[–] rem7 11y ago ↗ why don't you guys stop stalking github.com/csvoss already? Third post of the day: https://news.ycombinator.com/item?id=10117612 https://news.ycombinator.com/item?id=10114969 [–] mejari 11y ago ↗ Not sure I understand the problem. If each submission is interesting in and of themselves, does it matter if the source is the same?
[–] mejari 11y ago ↗ Not sure I understand the problem. If each submission is interesting in and of themselves, does it matter if the source is the same?
[–] erdewit 11y ago ↗ Why not use a bitemporal data model instead, it's cleaner and easier to reason about.https://en.wikipedia.org/wiki/Temporal_database [–] leni536 11y ago ↗ I think it would be the "naive" implementation. For specific data structures more efficient specific algorithms can be written.
[–] leni536 11y ago ↗ I think it would be the "naive" implementation. For specific data structures more efficient specific algorithms can be written.
[–] pandler 11y ago ↗ Can anyone give an example of a use case for this? [–] Semiapies 11y ago ↗ I'd be rather curious; this is an interesting concept.
[–] gergoerdi 11y ago ↗ You can also do time-travelling control structures: https://hackage.haskell.org/package/tardis-0.3.0.0/docs/Cont...
[–] bmn_ 11y ago ↗ Perl did time-travelling variables first, namely in 2007: Positronic::Variableshttps://www.flickr.com/photos/gunnarwolf/1343377956/This in the picture is Conway giving the talk.
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[ 3.4 ms ] story [ 35.0 ms ] threadhttps://en.wikipedia.org/wiki/Temporal_database
https://www.flickr.com/photos/gunnarwolf/1343377956/
This in the picture is Conway giving the talk.