I recently got into microcontrollers and one of the most surprising things to me was the low cost and small size of ESP32s with wifi. Having grown up at a time

I recently got into microcontrollers and one of the most surprising things to me was the low cost and small size of ESP32s with wifi. Having grown up at a time when it wasn't unusual to buy a PCI card for your desktop computer that added wifi capability I had assumed that we'd still be looking at a target large device that goes for ~$20+ to get WiFi. Explicitly thinking about the ubiquity of cheap devices with wifi around me would immediately correct this view, but I had never done that and I'm sure many others haven't either