Editing Muscle memory (section)

===Puzzle cube memory===
{{more citations needed section|date=March 2016}}
[[File:Erik Akkersdijk is solving a 3×3×3 Rubik's Cube in 10.50s.ogv|thumb|Erik Akkersdijk is solving a 3×3×3 [[Rubik's Cube]] in 10.50s.]]
[[Speed cubing|Speed cubers]] use muscle memory when attempting to solve puzzle cubes, such as the [[Rubik's Cube]], in the fastest possible time.<ref>{{Cite news|date=2019-07-11|title=Speedcubers are solving Rubik's Cubes at ever-faster speeds|newspaper=The Economist|url=https://www.economist.com/graphic-detail/2019/07/11/speedcubers-are-solving-rubiks-cubes-at-ever-faster-speeds|access-date=2021-12-10|issn=0013-0613}}</ref><ref>{{Cite news|last=Barron|first=James|date=2014-04-25|title=A Cube With a Twist: At 40, It Puzzles Anew|language=en-US|work=The New York Times|url=https://www.nytimes.com/2014/04/26/nyregion/rubiks-redux-a-colorful-cube-puzzles-anew.html|access-date=2021-12-10|issn=0362-4331}}</ref> Solving these puzzles in an optimally efficient manner requires the cube to be manipulated according to a set of complex [[algorithm]]s.<ref>{{Cite book|last1=Demaine|first1=Erik D.|last2=Demaine|first2=Martin L.|last3=Eisenstat|first3=Sarah|last4=Lubiw|first4=Anna|last5=Winslow|first5=Andrew|date=2011|editor-last=Demetrescu|editor-first=Camil|editor2-last=Halldórsson|editor2-first=Magnús M.|chapter=Algorithms for Solving Rubik’s Cubes|title=Algorithms – ESA 2011|series=Lecture Notes in Computer Science|language=en|location=Berlin, Heidelberg|publisher=Springer|pages=689–700|doi=10.1007/978-3-642-23719-5_58|arxiv=1106.5736 |isbn=978-3-642-23719-5|s2cid=664306}}</ref> By building their muscle memory of each algorithm's movements, speed cubers can implement them at very fast speeds without [[Automatic and controlled processes|conscious effort]].<ref>{{Cite web|last=Saunokonoko|first=Mark|date=2015-09-12|title=Feliks Zemdegs: cracking the Rubik's Cube|url=https://www.smh.com.au/lifestyle/feliks-zemdegs-cracking-the-rubiks-cube-20150821-gj50m9.html|access-date=2021-12-10|website=The Sydney Morning Herald|language=en}}</ref> This plays a role in major speedcubing methods such as [[Fridrich method|Fridrich]] for the 3×3×3 Rubik's Cube and EG for the 2×2×2 [[Pocket Cube]].