Because we're human.
Because we didn't make enough effort to write it it down, to record it, to memorize it.
So we write it down, record it, memorize it, if you think it's worth remembering. Maybe it isn't.
PS: If you like reading the blog or find the information insightful, share it with someone. Quote, screenshot, whatever you like. A like button would probably be easier but I'd rather you share the ideas with someone. Don't be selfish! :)
