I am a firm believer in candid feedback; I talked to multiple people taking fast.ai and all of them took it as disturbing the flow of lectures. I really like fast.ai, it's an excellent hands-on course, so please don't get offended.
Since you appreciate candid feedback, I would like to explain why I down-voted you. Your post comes off as super rude and dismissive. You may have some valid criticism to give but, take more care in how you deliver it. It's a bad look for HN.
I appreciate your feedback! :) It's difficult to convey mental state over a single line of text, giving rise to various interpretations that weren't in the intent. Imagine I am your best friend and I say the same in a playful fashion - would that be more acceptable?
Absolutely! That's actually in the hacker news commenting guidelines: "Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith."
https://news.ycombinator.com/newsguidelines.html
So to answer you question, yes, it would be more acceptable if you were saying that to me in person. In fact, I agree with you about the flow of the lectures, and I was looking for someone to bring that up and I'm glad that it's getting discussed here.
However, Jeremy and Rachel are both reading these comments and we should strive to provide thoughtful, fleshed out feedback. The work they've done on Fast.ai is a tremendous lift, and deserves more than a drive-by comment.
The thing is you can visibly see how it interrupts Jeremy; he is in the middle of explaining something, then has the face of a surprised person, loses context for a few seconds etc. Better IMO would be if he just finished a small section in its entirety then did Q&A, instead of allowing himself being interrupted all the time. And often those questions are missing the point, which is to be expected with newbies, so the lecture loses efficiency. If I didn't know most of the basics already, I'd have problem following them. I found just doing the exercises better for learning.
I also find the questions very helpful. I understand for many people who already have a good understanding, these questions might be interrupting the flow. Many a times the questions his students raised were things that I had not thought of, sometimes they even stumped Jeremy. Fortunately Jeremy in most cases gives answers which vary in length, according to whether it's a concept which he will clear later, or whether it is an important concept that needs to clarified then itself.
So I think this more effective way of learning/teaching even though there is a loss in efficiency.
Rachel's mic is always off until I turn it on. So if she's asking a question, it's only after she's visually indicated that she wishes to do so, and I've found a time in my presentation that I'm ready to take it. So I'm literally never being interrupted, and can't be surprised by the fact that she's asking a question (although I may well be surprised by the content).
I do try to limit the time I wait to take a question, since I don't want to move on with a topic where I've failed to properly explain some foundational piece.
Same, there have been several times I have had a question and someone thankfully asks the exact one I had. And Jeremy does a great job explaining it. It really helps to get at some of the why's behind the magic.
You are missing the point, that is full part of their experience opening to unrepresented classes and styles. It is human together with efficient, the heart added to the mind.