India, Aug. 24 -- For a few minutes, in the final round of the British Open at Royal Portrush in Northern Ireland last month, Scottie Scheffler showed that he could be vulnerable. That his computer brain, which uses microseconds to crunch multiple variables - wind speed, fairway tilt, green gradient, ball lie - and throw up the best club / direction / swing-meter combos, could indeed malfunction. That the undisputed champion of golf was human, after all. It was the eighth hole. The American was seven shots in the lead, towering over the field in the manner that Tiger Woods used to in his prime, and another routine par-4 lay ahead. But Scheffler's tee shot veered right, landing in an ominous fairway bunker from where the best option was to s...