Existence Is Weirder Than You Think | Nikk Effingham
🔍 Key insights
Every “obvious” answer is already a philosophical position – Saying “a coffee cup is just atoms arranged cup-wise” feels like a way of dodging metaphysics. It isn’t. It’s a specific, contestable metaphysical claim, no different in kind from the positions it’s meant to dismiss. There’s no neutral ground to stand on here — the moment you say what exists, you’ve taken a side.
“Brute fact” is often where the questioning stops, not where it should – Almost any hard question in metaphysics can be answered with “it’s just brute — there’s nothing further to explain.” But that answer has a cost, and it’s rarely the cheapest one on offer. The real work in ontology is comparing theories against each other, not shutting the question down.
Existence splits into more questions the moment you look closely – Existence, or fundamental existence? Actual existence, or existence full stop? Half of the hardest debates in ontology aren’t disagreements about the world at all — they’re two people using the word “exist” differently without realizing it.
📚 Go deeper
🎥 Related videos:
Are Possible Worlds Real? Modal Realism Part 1 – Philosophy Tube – A clear, funny walkthrough of David Lewis's infamous claim that every possible world genuinely exists — the same "bonkers but rigorous" theory Nikk brings up when he talks about talking donkeys.
What is Nominalism? (Universals and Abstracts) – Carnadeas.org – If you want the other side of that debate — the view that there's no shared "blackness" out there in the world at all — this one lays out nominalism cleanly.
📖 Further reading:
An Introduction to Ontology by Nikk Effingham — his own book, and the one I mention in the episode. It’s the most approachable way into everything we touch on: holes, numbers, possible worlds, material objects. For the other extreme, David Lewis’s On the Plurality of Worlds is the source text for the “bonkers” possible-worlds theory we spend so long unpacking.
💡 Think for Yourself
If you can’t tell whether a disagreement is about the world or just about how two people are using the same word — does the disagreement still matter?
Professor Effingham’s answer to selecting theories is a cost-benefit analysis. Try running one yourself: pick something you assume is real, and weigh what you’d gain — and lose — by deciding it isn’t.
☁️ Thought Experiment
David Lewis held that somewhere among his infinite possible worlds, there’s one exactly like ours — except in it, you stand up mid-sentence and walk out of the room for no reason at all. He didn’t think this was a weakness in his theory because it enabled him to explain many other concepts. So take a moment with your own beliefs: is there one you’re holding onto not because it sounds reasonable on its own, but because everything else you believe would fall apart without it?
Cheers,
Kevin