The sea is vast, which is probably why I seldom meet people I know when I go in to take a swim. Another reason is that the sea wets people's hair and I don't recognize them quite as easily. A few days ago two wet-haired people called my name. It happened among the Hawaiian-sized waves of Alma Beach, north of Jaffa's promenade. They turned out to be my two friends Orna and Loren. We chatted about what's new and I told them I have a new baby: "The Round Trip," my new book, and the first ebook to be published by…