We don't do calculations: computers do it for us.
We don't accumulate knowledge: we trust Google to give us the information when needed.
Everything in a small package everyone can wear all day long. We're at the second step of transhumanism.
GPS is great at knowing where you are, but directions are much much harder, and the extra difficulty is why the first version of Apple Maps was widely ridiculed.
Even now, I find it's a mistake to just assume Google Maps can direct me around Berlin public transport better than my own local knowledge — sometimes it can, sometimes it can't.
(But yes, a single original Pi Zero beats all humans combined at arithmetic even if all of us were at the level of the world record holder).
After I moved here and learned the system, I realised it had on my first trip directed me through a series of unnecessary train routes for a 5 minute walk.
Last summer, when trying to find a specific named cafe a friend was at, Google Maps tried to have me walk 5 minutes to the train station behind me to catch the train to the stop in front of me to walk back to… the other side of the street because I hadn't recognised the sign.
It's a great tool, fantastic even, but it still doesn't beat local knowledge. And very occasionally, invisibly unless you hit the edge, the map isn't correctly joined at the nodes and you can spot the mistake even as a first time visitor.