And I do think there is something (I do not know precisely what) that is very essential about moving forward from counting to adding and then from adding to multiplication and then from multiplication to exponentiation. This does invite going forward still further (beyond exponentiation).
However; to move from one to the other (counting to adding to multiplication to exponentiation) you can do so by just saying "repeat". Another way to move from one to the other is to think of it geometrically. Both are sort of covered in the post "One Plus One"
I actually wrote the post a couple of days before Christmas and for a Christmas present this year my brother-in-law Frank gave me "ONAG". A couple of years ago I purchase "Surreal Numbers" and quickly thought that ONAG would be the perfect follow on. Of course the post "One Plus One" is light years from what Conway is doing but it really did strike me when I got the Christmas present, I thought "Wow I was just thinking about what numbers are?"