Those few smells of extremes (garbage /clean air) make me think they are saturating the sensors.

I'm thinking it could be that we are very attuned to smelling bad smells because it's for safety.

	▲	exr0n 3 hours ago \| parent [-]
		Totally agree with both points! I would love to see what happens with more fine-grained control of the ultrasound.

The real question is that if you make it smell like garbage, will flys show up? Like is this a human experience, or a universal one?