“A point to remember. As any technology advances, its methods and equipment do not become more complex; they become simplified. (Take, for example, printed circuits, silicon chips.) Such equipment may not be recognizable to a civilization of inferior knowledge. The point is we may be looking at objects—quite exciting objects—without recognizing them. Who would have expected that items in Baghdad Museum, long labelled as “ritual objects,” would prove to be components of batteries? Do you see what I mean?”