In my closing I stated that I would agree with speed-solving still having some reliance on physical prowess.
You're right, it is mostly physical, but not nearly to the same level as athletics. The genetic reliance is almost completely on very specific non-interchangeable physical traits for...

In discussing the influence of static genetic advantages in speed-solving, I don't think it is correct to reference athletics. The malleability of the human body toward performing a physical skill is different from the malleability of the human brain toward an intellectual goal.
Physical...

I downloaded qqTimer offline and modified it to have a bunch of Roux related scramblers:
First Block Front Pair
Second Block
Second Block Front Pair
Second Block Back Pair
Second Block Random Pair
Second Block Both Pairs
CMLL
LSE Random State
LSE <M,U>
LSE 4b
They're under "3x3x3...

I thought I saw a table showing how many first block cases are solved by which optimal move count from one to nine, but I can't find it. It was a long time ago, can anyone help?
EDIT: Finally found it, plus 1x2x2. From johannes91...

It sounds like you are either not completing 4a fully, or you are approaching 4b wrong and flipping edges in the process.
If you have to flip edges after permuting the M layer during 4c, you are doing something wrong before that point.
If you post a scramble and partial solution that leads you...

Maybe focus.
Consider two solvers that are equal in turning speed, look ahead, and efficiency at the same competition. They both make the same mistake at the same point in the same scramble, after the same time has passed in the solve. The one that loses focus will likely start turning faster...

U' F2 L' R F' L2 R2 D2 B F R B F U F D' R' D2 U2 R2 B U' B' F' L U2 L' D B' F
Speed solve (9.47s):
x2 z'
R' U' R2 (B F)
U R U R U R U' R' U R U' R'
U2 R' U' R U R' F' R U R' U' R' F R2
M2 U M U M' U M U2 M' U2 M2 U
alg.cubing.net
After tinkering:
x2 z'
R' U' R2 (B F)
U2...

100 scrambles that have 7s optimal solutions, and no less than 7:
Emphasis on the s in 7s.
What avg12 can you get with these ones that has 3s solutions? :P

Set up the case with an M2 (U/U') before it, then practice it both ways and see which is faster and/or more comfortable.
Do the setup: M' U2 M2 U2 M U' M2, and time/practice all of the following:
M2 U M' U2 M2 U2 M
M2 U M U2 M2 U2 M'
M2 U x U2 M2 U2
M2 U x' U2 M2 U2
Do the setup: M' U2 M2 U2 M...

I was responding in general to the topic of whether or not to use video evidence at all. That said, I don't think I should ignore your points, as they do indirectly address mine.
I am aware that the WCA cannot ensure perfectly accurate records. I was suggesting that all regulations are...

WCA record keeping is a global scale attempt to create a database representing real life events. In this case, those events are the speeds at which individuals have solved various puzzles. All WCA regulations are set toward getting accurate measurements of these times.
It is possible for a...

L' is "L prime", which, in the context of turning faces on a cube, means turn the face counter clockwise 90 degrees instead of clockwise 90 degrees.
D2 and B2 are 180 degree turns. The capitals are important because a lower case letter means to do a wide turn, which means to include the...

The scramble is in the link.
B2 D2 R2 B U2 F' L2 B' D2 B R' U2 B D U2 L2 B2 F R' F
y
D2 U R U B2 U2 F2 (7/7)
U' r' U2 R' U R2 U R' U' R U2 R' U R (14/21)
U L' U2 y R U2 R' U2 R' U2 F y' x' (10/31)
U2 M' U M' U2 M' U M' U' M' U2 M' U M2 U2 M U2 M' (18/49)
49 moves isn't that high for a solve...

First Solve (Red F, Yellow U) B2 L2 D' F2 D2 U R2 D F2 D' F2 R B2 R' B L2 F' D' U' L2 F'
Left Square
11 moves for a square is just far to many. You got lucky and it turned out to be an 11 move full block, but that's irrelevant. Try to use 7 moves maximum, but aim for 4 or 5.
In this...