My friend planned to start morning walk. And for the first day, he planned for 10km. I, impressively, said, "That's gonna be some head start!" And he returned, "Head start over whom?"
I first didn't get him. Later I checked that head start is used mostly for comparison with somebody. But then from the wikipedia entry last para, I inferred that this word may be used absolutely, without any comparison. But I am not sure. But just to avoid confusion for future, I was wondering for an alternative and I thought about jump start but Oxford is listing it just as verb. So I wonder how I could improve on my original sentence.