I had coffee. Espresso in American English . But sipping it at my usual hangout I had a moment of general doubt both about myself and humans at large; they were having a so-called slow bar at the back where a bunch of people were tasting all these different sorts if green tea. As if one an tell the difference. And as I know the barrista , he saw me and invited me to sit down with them savor all those green tea varieties . I told them that to me all green tea just taste like water infused with hay, of the sort used to grow cultures of amoebas. Or is it paramecium ?