Cecil, W5DXP wrote:
"That was the definition of a traveling wave in a Zo enviroment,---."

All this discussion over the insipid subject of flat lines?

A virtual short appears in a line with 100% reflection. The virtual
short appears where the sum of incident and reflected waves produces a
concurrence of zero volts and maximum current, just as in a true short.
The line has zero loss to enable good repetitions of an actual short or
open.

Best regards, Richard Harrison, KB5WZI