The idea that consciousness is an emergent phenomenon from less complex things working together. There’s no evidence of, for instance, a city or bee hive having “consciousness” so it’s philosophical, not scientific, but the idea appeals to me.

I think it appeals to me because it’s a bottom up approach to something we usually think of as top down. Emergence in general is very common in nature. Ants aren’t sophisticated but ant colonies can be surprisingly complex. Maybe it’s the same with our cells.