[HN Gopher] You need much less memory than time
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You need much less memory than time
Author : jonbaer
Score : 29 points
Date : 2025-06-07 21:38 UTC (1 hours ago)
(HTM) web link (blog.computationalcomplexity.org)
(TXT) w3m dump (blog.computationalcomplexity.org)
| dang wrote:
| Related. Others?
|
| _For algorithms, a little memory outweighs a lot of time_ -
| https://news.ycombinator.com/item?id=44055347 - May 2025 (139
| comments)
| krackers wrote:
| Dupe of today's https://news.ycombinator.com/item?id=44212861 ?
| laex wrote:
| See Kelsey Houston-Edwards's exceptional breakdown of Williams'
| paper, & Scott Aranson's thoughts on the topic.
|
| [1] https://www.youtube.com/watch?v=8JuWdXrCmWg
|
| [2] https://scottaaronson.blog/?p=8680
| npinsker wrote:
| I think the summary at the beginning of your first video is
| misleading; it's not a way to "trade space for time", at least
| not in an arbitrary program. The real statement is a bit odder
| to wrap one's head around -- "every problem solvable in t time
| on a multitape Turing machine is also solvable in close to [?]t
| space".
|
| For a Turing machine that already solves a problem in n time
| and [?]n space (in other words, a lot of them!), it doesn't say
| anything.
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