Started as a shower thought (literally in the shower), but decided to make it more open-ended.
My answer to this would be “watch future seasons of anime that I am waiting on”.
I don’t see how that could cause a huge ripple through time.
Thank you! I think the same idea could be applied to any short, fleeting moment where you’d take no different action, like an enjoyable sunset or a sweet smell, though being able to experience those again and again may diminish their value.
That would just affect you, though, not the timeline as a whole.