Another fascinating aspect of Go is the way in which a player can suddenly switch to a completely different part of the board and open a second (or third or fourth....) front. The debate in the bottom right is not fully settled, but anarres, quite rightly leaves it for now to threaten another of "my" areas. Soon we will have several seperate fights and the nerves will fray as we try to judge at what point we can afford to leave one alone and return to another.
My move at j10 in the centre gave him the initiative in these fights, but I hope to reap a benefit later when, if I'm lucky, it will contribute to the struggle from any side into the centre.
I know it may all seem a little vague at the moment, but in the middlegame we will have struggles for life and death of whole groups of stones.