So much of school and of university was, for me, about learning that learning in public was unacceptable, and making mistakes in public was unacceptable, to the point that I was heartily congratulated by the professor running a practical at one point when I went up to a demonstrator and said "I need help. I don't understand this exercise." "Okay, what don't you understand?" "Any of it."

So -- yes, it is hugely valuable, and you are an all-round good thing, and -- thank you. For everything. I am so glad you liked your introduction, and so glad that you invented this meme, because as is probably obvious to you a lot of other people are getting things out of it too (not just the ones who comment to say thank you -- I've also been getting IMs & e-mails of gratitude, so -- again, thank you for making the world a better place).