think of humanity as a band playing a tune. To get a good result, you need two things. Each player’s individual instrument must be in tune and also each must come in at the right moment so as to combine with all the others. But there is one thing we have not yet taken into account. We have not asked where the fleet is trying to get to, or what piece of music the band is trying to play. The instruments might be all in tune and might all come in at the right moment, but even so the performance would not be a success if they had been engaged to provide dance music and actually played nothing
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