That’s a good point I overlooked because it’s rare for me to have such polluted skies such as from massive wildfires. Pollution can definitely make the reds deeper, but it comes at the cost of muted colors overall. Human particulate pollution isn’t really on the scale of what’s needed to have a visible effect like that either, so wildfire smoke is the most common source of visible effects
I counted 5 and then 7 steps across 2 breaths. Gotta be at least 50c per step for my to consider it any further. I probably wouldn’t accept until $1. And even then, casual cardio like walking would ramp up breathing faster anyway.