It's amazing what I used to ride with, now that I have sufficient lights.

Forgot to mention that lumen output drops substantially over time, so output during a 1 hour commute can be cut in half, which needs to be factored into the equation. With oncoming bike lights getting stronger, you need to have sufficient light to not be blinded, and oncoming cars in a portion of my commute that runs opposite to traffic along a dark road are so blinding, it is downright scary without adequate light. Ninja runners are the norm around here, and you can just pick up a tiny reflective patch on the back of their shoe if you are lucky.

Thankfully, I am winning the arms race, and intend to keep it that way.