OK, let’s go. Here’s the answer to the first of my latest round of Five Questions.

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Question 1: Can we understand everything?
No. Not a hope in hell. At least I bloody hope we don’t.
One of the defining features of our species is our ability to make connections. From birth, we can’t help but recognise patterns — and hence we begin to understand how the world works. What goes for us individually applies to our species as well. The history of science is the history of seeing ever deeper connections between apparently unrelated phenomena. And there is no reason to suppose that this won’t continue ad infinitum.
However chimps, smart as they are compared with, say, tortoises, will (we assume) never grasp quantum theory, or even recognise the need for such a theory. And although we are smarter than chimps (at least for some measures of “smarter”), why shouldn’t there be concepts that are too big or too complex for our brains to handle? Even too big/complex for us to be aware of?
So isn’t it just arrogance to think that we will, one day, understand everything? And anyway, isn’t being able to understand everything a frightening prospect? Because then we would know what everyone else was thinking; all the time; about everything from apples to zoophilia. That way madness surely lies.