The Qatar World Cup is in full swing, and those with stronger presence than players and referees are the "black technology" in the arena. Even senior fans who have watched the game for decades may not have seen such a scene - the players after the goal no longer cheer, but look a

Qatar World Cup is in full swing, and those with stronger presence than players and referees are the "black technology" in the field. Even senior fans who have watched the game for decades may not have seen such a scene - the players after the goal no longer cheer, but look at the referee worriedly and wait silently for the instructions that "the goal is valid". The sound that determines the fate of this ball comes from the headphones worn by the referee - the backstage semi-automatic offside recognition system is being quickly analyzed. Whether the goal is valid or not, the referee will obtain the judgment result from the machine as soon as possible.

A new batch of "black technologies" at the Qatar World Cup include CTR-CORE chips embedded in the game ball, semi-automatic offside recognition system (SAOT), outdoor cooling technology and retractable roofs. Among them, the most powerful presence is the semi-automatic offside recognition system. For a long time, the judgment of offside is like a difficult and complicated problem on the court. The goal is effective and invalid, sometimes only a slight difference. Not only is it difficult for the referee to distinguish, but the fans of both sides also have their own opinions after the game. The most helpless thing is that the views of all parties seem to be reasonable to the viewers.

semi-automatic offside recognition system showed its power as soon as it came on the court - Ecuador's goal was judged to be invalid in the first three minutes of the World Cup. The recognition system was very "busy" during the group stage. Argentina's three goals in 20 minutes were judged invalid. The accuracy of the penalty accuracy to "body hair level" made many fans shout "not understand" and "no need". Many post-match analyses said that such a penalty made Argentina fear in the subsequent games and lost the sharpness of its past offense. In a game not long afterwards, the Cameroon player seemed to respond to the angry fans. He touched the ball, ran and shot twice in a row in the match against Serbia . Even if the recognition system is accurate to millimeters, it still cannot stop the result of "the goal is effective". It can be seen that once the semi-automatic offside recognition system is released, several companies are happy and some are sad. The happiest thing is the referee and lineman, which not only lifted the burden of business, avoided the occurrence of unjust, false and wrong cases, but also reduced the mental pressure, and no longer had to bear the infatuation of " black whistle " from fans. For many teams' defensive ends, accurate identification is also a major benefit. If the " offside " technique is mastered, the defensive pressure can be greatly reduced. For offensive players, the timing and position of running should be more accurate, and the pressure will suddenly increase; but the identification system only implements the rules of the game, not directly interferes with the players. Really exciting and compliant goals will not be rejected by technology.

Some fans said that the wonderful goal was judged to be invalid, the players became restrained in playing football, and the passion on the field was also extinguished by new technologies. It is true that the introduction of new technologies provides new ideas for defense, changes players' choices in one thought, and indeed reduces the "visibility" in the perception of some fans. But treating uncertainty and regret as part of football’s charm is a real humiliation to competitive sports.

Compared with uncertainty, fairness is the charm of sports competition. Sports competitions have always regarded fairness as the truth. The exploration of fairness is a process of gradually moving from the relative nature of truth to absoluteness. In this process, due to the limitations of practice and cognitive development, unfair phenomena often occur. Although it is understandable, it does not mean that the facts should be like this. In the 2010 World Cup, the German goalkeeper took England's goal out of the goal line. The referee determined with his naked eyes that the ball had not crossed the line. The situation changed drastically in an instant when the even game was evenly matched. The subsequent Champions League league learned lessons and promoted the goal line technology to be used in the new season. In response to the fans' doubts, the video assistant referee VAR was also used in 2018 and played an irreplaceable role in subsequent games. It can be said that it is the vigorous advancement of technology that has gradually eliminated the uncertainty of the arena and defended the fairness of the game. The lack of charm in the eyes of some fans fills the possible regrets that may arise from the hard-working players and the teams and countries behind them.

Of course, technology is not neutral, and the concerns of the technology black box should be responded and prevented as soon as possible.There are already many concerns that the offside screen displayed by the semi-automatic offside recognition system may have problems such as picture splicing. After the uncertainty of manual penalty is solved by technology, will the technology be manually intervened? Technology should better play a final role in the field, and technical ethics and supervision should be the key issues to focus on in the next stage. (Reported by Wang Zhenru, reporter of Dazhong Daily Client)