Bikers, please pedal when you are going downhill. In this situation, gravity is on your side. As a result you will find it considerably easier to pedal, and you may be amazed at the speeds you will quickly reach with very little additional effort. As a side benefit, your momentum will carry you speedily up the next hill, making that climb much easier.
Don't just coast down the hill. While you will still reach the bottom, you will do so at a comparative crawl. Worse, when you reach the next uphill, you will have to navigate it completely under your own power. And if I am behind you, I will have to brake and patiently endure the same fate.
Yes, when the going is easy, store up momentum for when the road tilts against your favor. You will expend less effort in the long run. You will reach your destination faster. You will have more fun.
Lastly, I am sure there is a metaphor for life in here somewhere. Thank you.