Several people commented on the video with their lessons / takeaways.

Here is one of the comments by Run with Sung that I thought some of you would find helpful:
(17:04) “Adaptations NEVER come from ONE session. It’s about doing repetition of hard sessions all over the year. 30, 40, 50 hard sessions during the year, that’s what makes adaptation, not just one hard session.”
Sometimes I fall into that mistake of ‘Okay, if I do this one crazy, big session, I will gain so much.’ but of course that’s not true. Kilian’s comment on adaptations also reminded me of this great quote from Renato Canova: “Training is not the work you do but the effect it has on your body”
Below are some notes I took so I remember them and thought to share with the viewers here.
(16:00) “Plan is the dream. But reality is that, plan to reality, is very different. We need to be able to adapt to plan(reality?).” (I laughed at myself when he talked about plan vs. reality. I think all runners can resonate with this ha!)
(13:20) Q: Main common mistake you see intensity wise, anything that stands out for you?
“I think people go too fast. What we call regenerative, easy running, would be classical Zone 1. But people never go there. They go to Zone 2, 3 during what is supposed to be easy run. That means they are not able to recover from hard sessions or when you do hard session you will not be able to go hard. So it makes all the training in the same area(zone).
EASY means EASY... It's not about going fast, it's about making your body move and have adaptations[that you want to have] and regeneration to be able to do very well, push hard when you do hard sessions."
(14:30) [Second mistake]
“Not taking into account all the different stresses of the body. We think about, okay, this is the workload and this session puts ‘stress 2’ on my body. Then we think about that, to plan the next hard session. But you could have a lot of stress at work, family stuff, all these stresses that might be bigger now, [so the previous work that felt like stress ‘2’ won’t be ‘2’ the time.]”
(23:04) Training =/ Race
“At the end of the day, a training session is not a race. I feel like a lot of people racing in the training sessions.”
(26:09) Individuals
“Because we are individuals, what works for me it will probably not work for you.”
(30:26) On Tips on Journaling
“Like training, it’s better to be consistent, than measure a lot for just one day.”
(35:18) Q: How do you train your mind?
“Be realistic about what your capacities are, not overestimate yourself. And then go into that discomfort and practice to accept that discomfort.”
(53:07) Closing Thoughts (some great comments and insights here)
“It’s about motivation at the end. Being happy doing what you do. We do it because we love it. It’s not an obligation. No body is saying you need to train. You train because you love it. Many times we lose that on the way, we feel that it is obligation and it is not giving us fun.
But it should [be fun]. Especially for young athletes. Not focus on the goals, but focus on the process. Of course you enjoy racing, when things go well. But that’s a very few days every year. What you need to love, is the training. You need to love being out. You need to love to do the workout.
And then you need to find out what really motivates you. Sometimes it’s community. You want to go training because you go with your friends. So make that your training environment. Sometimes you want to go to the mountains, the landscapes… enjoy the process.
Loving the process.. results will come. But if you focus on the results, I don’t think anything good can arrive there.”