(50shadeofspeed)

Race #4157

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Official speed 71.88 wpm (44.91 seconds elapsed during race)
Race Start July 25, 2019 12:24:37am UTC
Race Finish July 25, 2019 12:25:22am UTC
Outcome No win (2 of 5)
Accuracy 99.0%
Points 58.70
Text #3811410 (Length: 269 characters)

Any physical theory is always provisional, in the sense that it is only a hypothesis: you can never prove it. No matter how many times the results of experiments agree with some theory, you can never be sure that the next time the result will not contradict the theory.