History is like quantum physics: the observer affects the event observed. Is the Kennedy assassination a particle or a wave? ✬

We're in the second week of an unrelenting heat wave. ✬

Tom gave Mary a wave. ✬

Tom gave Mary a friendly wave. ✬

The wave knocked me off my feet. ✬

How is the heat wave affecting you? ✬

Tom gave Mary a small wave. ✬

I gave Tom a small wave. ✬

Tom didn't wave back. ✬

Wave to Tom. ✬