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Serious request: can someone please solve this for moving furniture around in 3D? Let me take an AR scan of a flight of steps with a corner and another scan of a couch, and tell me if it's possible to do the move.

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It comes down to millimetres and I just wouldn’t trust an AR scan.

It always does. Always. Never a spare inch when moving a couch.

That would be a big coincidence, wouldn't it?

I don't beleive in coincidence: You stop optimizing when you can get it around the corner.

'You always find something in the last place you look.'

Another day of saying ‘I took the first solution that worked’.

Fine, let me enter the dimensions manually

Yeah, that’s not much better. Measuring a couch isn’t too hard, but measuring a corridor in an old building is fraught. Nothing is square and surfaces and mouldings are often curved.

Looked over every comment hoping to find this. Kind of negates the whole article, and it should.

It does not negate the article in any way. This was a mathematical thought experiment and an optimization problem, not about real furniture in real corridors.

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