Has the greatest fighter ever even been born as boxing is still in its infantile period?

Obviously there are all different types of fighting styles/combats ie Boxing, Karate, Judo, Brazilian Jiu - Jitsu, Jiu jitsu, Kickboxing, Muay Thai, Wrestling, Taekwondo etc but the best fighter in the world has always been regarded as a fighter from the Boxing fraternity as boxers can take punishment as well as receive it unlike other fighting disciplines. So has the greatest fighter ever, been born yet? It is highly unlikely as we (humans) still have 4 billion years left on Earth lol. It is the same in every sport ie golf, tennis, athletics, football, basketball, pool, snooker, baseball, soccer, rugby (both codes) etc as someone will always come along who is better than the people preceding them, mainly due to technology, advanced training methods, nutrition, experience, revolution, trial and error and overall fitness although you don't have to necessarily be fit to play golf, pool and snooker but it has improved nevertheless mainly because of technique and technology/equipment. So when will the greatest fighter ever come into existence and what weight will they box at? And when will the second coming of Muhammad Ali at heavyweight occur? For example they are saying someone coud run the 100m in 9.30 seconds and the 200m in under 19 seconds in track and field in the future. They are also saying Usain Bolt is 30 years ahead of his time as his times for the 100m and 200m shouldn't have happened until 2036 at least. We have had really good or great heavyweights but they never had Ali's philosophical extravagance combined with their fightng ability, plus Ali also lived during the civil rights movement and was a conscientious objector to the Vietnam War and a man of conscience and was then exonerated/acquitted for draft evasion which undoubtedly endeared him to the public and the world in general.