I love the whole “bicycle of the mind metaphor”, but think about what it means in the context of omnipresent smartphones: using a bike burns a lot less calories

I love the whole “bicycle of the mind metaphor”, but think about what it means in the context of omnipresent smartphones: using a bike burns a lot less calories than walking , so what does it do to our minds if for so many mental-related things, instead of applying our mind to them the hard way, we use our pocket computers? What would it do to my body and my weight if for every meter I used to walk, I would instead take the bike?