Cells are mobile, hunt, some even see using photoreceptive organelles on the inside of a section of cell wall using the cytoplasm as a lens. The function of many organelles clearly visible in cells under microscopy is still unknown. But it's clear they're doing a fair amount of computation and behaving intelligently. I'm struck by how similar gene regulatory network maps can look to function call graphs[1] and ion channel receptors in cell walls behave very similarly to transistors with on/off but also signal amplification applications. The more I watch them under microscopy, the harder it is not to think of cells as little animals unto their own. A great channel for beautiful footage is https://www.youtube.com/@journeytomicro

1: https://www.researchgate.net/profile/Emanuel-Goncalves-3/pub...