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Rabbi Lord Sacks and the dinosaurs

In today's Thought for the Day Rabbi Jonathan Sacks was talking about the extinction of the dinosaurs, which he described as 'the greatest mass extinction in history'. Of course, he meant prehistory – some dinosaurs did survive the event for a time but none of them wrote a historical account of what happened – but leaving that aside, it wasn't the biggest extinction event we know of. The end-Permian extinction, about 251 million years ago, was much bigger, wiping out over 90 per cent of the species then alive, compared to about 75 per cent for the dinoraurs.

His talk was triggered by a TV programme this week which decribed recent research suggesting that it was the site of the impact that made the event so deadly. It released vast quantities of sulphur into the atmosphere. and this in turn led to large-scale loss of plant life and starvation of any dinosaurs who survived the immediate fireball. If the bolide had landed in the deep ocean or on dry land the catastrophe would have been less devastating. So 30 seconds' difference in the timing of the arrival might have allowed the dinosaurs to recover.

Sachs doesn't regard this as chance but as evidence for divine providence. It was God's plan to allow the mammals to take over and, ultimately, humans to emerge. "COME IN, DINOSAURS, YOUR TIME'S UP!" For me, this argument is reminiscent of the old joke about the man who shoots at a barn door and then draws a target round the shots to prove what a good marksman he is. I find it easier to believe that the timing of the event was due to chance.

I don't think there was anything inevitable in the evolution of humans or, probably, in the evolution of complex life, let alone intelligent life. Life is probably widespread in the universe but most of it will be bacterial. (See The Vital Question, by Nick Lane.)
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John L Floyd on :

Spot on commentary Anthony. Fact-checking needs to go beyond politicians.

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