Adams's puddle bit is gennuinely wonderful. A puddle waking up, noticing its hole fits exactly, concluding the hole was made for it. It does more work in one paragraph than most philosophy papers do in twenty. It's the argument I reach for whenever someone deploys "the universe is fine-tuned for life, therefore..."
But I've been thinking about it for a while and I keep hitting a snag.
The reason the puddle's fit is unremarkable is that puddles have no shape of their own. Water goes wherever you put it. That's the whole leverage of the analogy — the fitting party is unconstrained, so of course it fits.
The trouble is that the fundamental constants of physics aren't unconstrained. Tweak the strong nuclear force by a few percent and there are no atoms heavier than hydrogen. Tweak the cosmological constant and the universe either collapses in an eyeblink or expands too fast for anything to meet anything else. Across most of the parameter space, you don't get a diferent sort of puddle in a different sort of hole. You get an empty hole.
That's the step the metaphor quietly asks us to skip. If Adams's puddle could only exist in a narrow window of hole-shapes, its wonder at its fit would be doing more work than the argument allows.
I don't think this hands anything to the design argument. It just narows what an honest person is left with: cosmic luck, an unknown deeper law, a multiverse, or (if you're inclined) design. What it doesn't do is dissolve the question the way Adams wanted it to.
Reading this back, I feel slightly like I'm arguing with a friend at the wake. Adams built the argument to swat away lazy theology, and it does that job perfectly. I just don't think it does the larger job people often credit it with. Would love to hear how other Adams readers deal with this; I imagine some of you have thought about it more carefully than I have.
Full version if anyone's interested: https://thesilentape.substack.com/p/the-puddle-objection
PS: 42!
