The "J" Curve for Funmanship
This is called a J-curve. Financial analysts, investors and economists deal with these on a daily basis.
I love this because I personally resonate with it when you make a slight adjustment to the wording below...
Substitute the phrase "positivity" for the word "investing". We may be in a bit of a dip now, but that dip >>>never<<< lasts, with its duration being a function of the amount of positivity we put into it.