Hello/Question
Sorry that I've been gone for a while, but I don't have reliable access to The Internet at home.
Here's a question for everyone here. In a couple of other forums that I'm a member of (I'm able to Facebook from my phone) there is a member who seems to think that we as cyclists "have" to "acknowledge" motorists within the first 5-seconds that we realize that they're behind us.
I think that doing so sends the message that the time and destination of the motorists is somehow more important than our time and destination. And I know of no other class of vehicle operator that is "required" to "acknowledge" traffic behind them.