Note what he said as a tenth of a second is 5 frames of 50FPS video and players can move some distance in that time. Though given Wright was well offside to begin with as he was barely moving yet Bissaka was running back then a bit common sense tells you he would have been further offside.
Some go on about 1mm/toenails but most are probably oblivious to the advantage that is then given to the attacker when VAR draw the thicker lines that only need to overlap slightly which is explained in detail in the post just above. The time in between 50FPS is 0.02 seconds (quicker than the blink of an eye) and on most occasions in that time the 2 players may move a few inches. There's also the fact that the actual touch is within that 0.02 seconds so the actual touch may only mean players have moved a very small distance in a time less than 0.02 seconds.
You mention cameras and clubs voted against using semi-automated cameras this season but they installed an extra 4 cameras to add to the numerous ones that VAR already use.
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The Premier League will not adopt the automated offside system used in the Champions League and World Cup for next season but will have four extra cameras at stadiums to help VARs.
What VAR do is take the frame where the initial contact is shown but it may be using a different camera will be closer with more detail. That is synced up with all the other cameras. They can also use other camera angles to pick the spot for the lines using the 3D tech that is calibrated for the pitch. They also hoy in the thicker lines to give more of the benefit of doubt to the attacker. The final image VAR show is to simply show the view across the pitch with the lines and players all in view and not the closeup angles used to see the touch/draw lines. This wider field of view image also makes whatever gap it was look a lot smaller when in reality the gap is far bigger than 1mm/toenail.
It still isn't perfect and never will be as there will still be a margin of error. Though a lot of the frustration and anger towards offsides would be a bit less if people knew the tech involved, how it worked and the basics of offside laws regarding when it actually should be taken, the point of contact of the ball and not when it's released for example.
The semi-automated stuff will be quicker and more accurate but it's obvious fans will still pick at it but can't accept that it can never be perfect. Aye it may not be perfect but there is a point where being onside has to become offside. They can't really use Wenger's method as it means that an attacker stood behind a defender with his toenail between the defender's legs will be onside. The onside/offside line is still there also so it's just moving the problem. With the current offside law, they can at least eliminate most of that doubt by giving the attacker the extra width line so there's no doubt at all he was offside. If that was in place and meant that no offside given was incorrect so every goal ruled out was correct I think some people would still bring up the 1mm/toenail just for the sake of moaning.