3 ms·

Speedcuber here: each competitor starts with the same initial state for each solve in their best of X. Yes, there is some luck involved but it's distributed equ

Speedcuber here: each competitor starts with the same initial state for each solve in their best of X. Yes, there is some luck involved but it's distributed equally.

orblivion 11y ago
Per competition though, not across competitions, which is relevant WRT world records.
- mannykannot 11y ago
  Yes - the fact that the record was broken twice in this one competition suggests that its particular initial state should be analyzed for solvability before we assume that we have entered 'a new chapter for speedcubing.'
  - level3 11y ago
    The two records were actually on different scrambles (i.e. different initial states). It's one thing if there was a particular scramble that everyone was solving faster than usual, but that wasn't the case here.
- atom-morgan 11y ago
  Well, yeah. You can't account for everything. Traditional sports don't consider elevation, air quality, wind, etc.
  - hyperpape 11y ago
    To an extent. Road race world records are only valid if they fall within certain limits of elevation change. You can run slightly downhill, but can't descend 500 meters. Ditto for tailwinds, I believe.
  - mihaifm 11y ago
    Wind speed is accounted for in athletics. Records won't get validated if there is a strong tail wind.
    - atom-morgan 11y ago
      This seems to be the only somewhat common variable.
  - Vvector 11y ago
    They do consider wind. Too much tail wind can invalidate a world record. https://en.wikipedia.org/wiki/Wind_assistance https://en.wikipedia.org/wiki/Wind_assistance
    - raldi 11y ago
      That's one factor in one sport. Does anyone disregard a track world record because the weather was pleasant that day, and the previous recordholder did it on a hot, humid one? Does anyone argue Barry Bonds' home run title should be disregarded because of the thin air at his away games in Denver? Take away wind assistance, and Bucky Dent loses his place in history. Take away a pebble in the grass and the Red Sox win the 1986 World Series. Add some rain to give pitchers an extra day of rest, and all sorts of baseball history gets upended.
karpathy 11y ago
Is there the scramble/analysis of the 4.90s solve somewhere? Looks to me like a nice fast cross, standard F2L, standard OLL, and then a clean PLL skip? edit: found something on page 16 of a thread: https://www.speedsolving.com/forum/showthread.php?55952-WR-Lucas-Etter-4-90-3x3-single!/page16 https://www.speedsolving.com/forum/showthread.php?55952-WR-L... looks like the last move was an OLL(CP) alg (https://www.speedsolving.com/wiki/index.php/OLLCP https://www.speedsolving.com/wiki/index.php/OLLCP), not just standard OLL, making the last layer skip 6x (?) more likely at the cost of remembering a few hundred more algs.

Speedcuber here: each competitor starts with the same initial state for each solve in their best of X. Yes, there is some luck involved but it's distributed equally.

orblivion 11y ago

Per competition though, not across competitions, which is relevant WRT world records.

mannykannot 11y ago
Yes - the fact that the record was broken twice in this one competition suggests that its particular initial state should be analyzed for solvability before we assume that we have entered 'a new chapter for speedcubing.'
- level3 11y ago
  The two records were actually on different scrambles (i.e. different initial states). It's one thing if there was a particular scramble that everyone was solving faster than usual, but that wasn't the case here.
atom-morgan 11y ago
Well, yeah. You can't account for everything. Traditional sports don't consider elevation, air quality, wind, etc.
- hyperpape 11y ago
  To an extent. Road race world records are only valid if they fall within certain limits of elevation change. You can run slightly downhill, but can't descend 500 meters. Ditto for tailwinds, I believe.
- mihaifm 11y ago
  Wind speed is accounted for in athletics. Records won't get validated if there is a strong tail wind.
  - atom-morgan 11y ago
    This seems to be the only somewhat common variable.
- Vvector 11y ago
  They do consider wind. Too much tail wind can invalidate a world record. https://en.wikipedia.org/wiki/Wind_assistance https://en.wikipedia.org/wiki/Wind_assistance
  - raldi 11y ago
    That's one factor in one sport. Does anyone disregard a track world record because the weather was pleasant that day, and the previous recordholder did it on a hot, humid one? Does anyone argue Barry Bonds' home run title should be disregarded because of the thin air at his away games in Denver? Take away wind assistance, and Bucky Dent loses his place in history. Take away a pebble in the grass and the Red Sox win the 1986 World Series. Add some rain to give pitchers an extra day of rest, and all sorts of baseball history gets upended.

karpathy 11y ago

Is there the scramble/analysis of the 4.90s solve somewhere? Looks to me like a nice fast cross, standard F2L, standard OLL, and then a clean PLL skip? edit: found something on page 16 of a thread: https://www.speedsolving.com/forum/showthread.php?55952-WR-Lucas-Etter-4-90-3x3-single!/page16 https://www.speedsolving.com/forum/showthread.php?55952-WR-L... looks like the last move was an OLL(CP) alg (https://www.speedsolving.com/wiki/index.php/OLLCP https://www.speedsolving.com/wiki/index.php/OLLCP), not just standard OLL, making the last layer skip 6x (?) more likely at the cost of remembering a few hundred more algs.