What do you think? Day 4 or 5?

Question

From top to bottom, day 1 to 5. Which day do I count as a surge? I thought day 4 (second last) but then it's even darker again on day 5? 🤔

Answer

I think you always count the first positive so that would be day 4 even though day 5 was darker :)

Let's Glow!