Daniel Dennett thinks we may be robots. Darwinian selection is a blind process that results in astonishingly well-adapted life forms in every environment on the planet. Computers and artificial intelligence can give the appearance of consciousness and even self-consciousness – so Siri and Alexa tell me – but the machines are merely following processes blindly. To be honest, so do I.

So human intelligence and self-consciousness are emergent properties from the blind processes that bring together an organic mass and allow it to survive claims on its organic integrity from other organic (e.g. tiger) and inorganic (e.g. falling rock) compositions whose four-dimensional co-ordinates occasionally clash with ours.

Some organic robots learn to play the guitar. Others listen to the guitar-playing robots. I have a guitar, but which machine – robot or guitar – plays the other is a moot point. Some organic robots investigate the environment in which they emerged, and construct theories about it. Those theories – concerning quantum mechanics and electricity, say – are used to extend the environment that spawned them e.g. to produce the iPad, or a SpaceX rocket.

I’m a robot that does not extend its environment. Sometimes I tidy up part of it using white gloss paint, but in general, I walk around it, but don’t meddle. Yesterday I ran round a small part of it (Singleton Park) twice. I intended to do one circuit, but then forgot where I started and once turned into twice. Some robots create quantum mechanics and some get confused when taking a turn round the park.

Some robots may feel inadequate when looking at environment-extending robots, with consequent lowering of self-esteem. The solution is to obtain a cat robot that will worship your ability to wield a tin-opener, a tin-opener being to a cat what quantum mechanics is to me.

There are shellfish on Swansea beach that bury themselves in sand, filter nutrients from the water and eventually succumb to age or predators and end as an empty shell on the tide line. They knew nothing of cats, guitars, tin openers and especially quantum mechanics, having had no contact with land-based life and no way to communicate with it even if they had suspected its existence. Am I a shellfish on a beach, unaware of a whole other hierarchy of life beyond my perceptual capacities?

The answer is, of course, that I don’t know and that it doesn’t matter. You have your given perspective and you deal with whatever that presents you with. It’s absolutely pointless to speculate about worlds invisible to you when there is an entire visible 4-D universe right in front of you.

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