{"items": [{"author": "Max", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130256471822", "anchor": "fb-10100130256471822", "service": "fb", "text": "Thanks for sharing! What are the y axis units, and what are the blue and red dots?", "timestamp": "1578106808"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130256471822&reply_comment_id=10100130297564472", "anchor": "fb-10100130256471822_10100130297564472", "service": "fb", "text": "→ Max if you click through you can see the whole image. X access is time, blue dots are samples, red dots are a moving average", "timestamp": "1578140160"}, {"author": "romeostevensit", "source_link": "https://www.lesswrong.com/posts/p4WpQSnTYi4AJfyhS#5fs6mSxo8Ah76vn9T", "anchor": "lw-5fs6mSxo8Ah76vn9T", "service": "lw", "text": "Venkat talks about this in his mediocrity sequence, that kakonomics are a kind of defense against goodharting yourself in the tails since tails diverge.\n", "timestamp": 1578109215}, {"author": "Haynes", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130282829002", "anchor": "fb-10100130282829002", "service": "fb", "text": "There is nearly a century of well documented practical training experimentation as well as many decades of scientific research on this topic. This strikes me as overly reinventing the wheel when you could read some of the extensive knowledge we as a species have accrued over much more time and iterations than you could possibly do with your body.", "timestamp": "1578120943"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130282829002&reply_comment_id=10100130304011552", "anchor": "fb-10100130282829002_10100130304011552", "service": "fb", "text": "→ It's not clear to me what you think I should be doing differently?", "timestamp": "1578147774"}, {"author": "Haynes", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130282829002&reply_comment_id=10100130323203092", "anchor": "fb-10100130282829002_10100130323203092", "service": "fb", "text": "→ I'm saying read books about running training if you want to get faster at running. I recommend https://www.amazon.com/Daniel.../dp/1450431836/ref=sr_1_2... It is focused more on longer distances, but includes training for middle distance (800meters-1mile). For instance, it is well known that a base of slower gentler miles will increase your capacity to do hard fast training with a lower risk of getting injury. In addition, those slower miles increase aerobic capacity through a variety of physiological adaptations (microvascularization, mitochondrial density, etc). And aerobic capacity is highly underrated by most people for middle distance running (which fit the time frames you posted). I realize this might not actually be your goal, but your stated goal was that you were interested in getting faster at this particular route/distance.", "timestamp": "1578158201"}, {"author": "Haynes", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130282829002&reply_comment_id=10100130328372732", "anchor": "fb-10100130282829002_10100130328372732", "service": "fb", "text": "→ It isn't necessarily that you were optimizing the wrong thing, but that you were optimizing it in a greedy hill climbing fashion. The fitness landscape of fitness (lol meta) is not convex. This is evident from the fact that you are slower directly after a hard run than directly before a hard run, but that at some time in the future after you have recovered and adapted to that run, you may be faster.", "timestamp": "1578159577"}, {"author": "Phae", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130290518592", "anchor": "fb-10100130290518592", "service": "fb", "text": "A nice illustration of Goodhart's Law", "timestamp": "1578129858"}, {"author": "Mike", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130320159192", "anchor": "fb-10100130320159192", "service": "fb", "text": "I love your posts Jeff! What is the y axis though? Miles run or time running a consistent distance?", "timestamp": "1578157311"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100130320159192&reply_comment_id=10100130344839732", "anchor": "fb-10100130320159192_10100130344839732", "service": "fb", "text": "→ Mike y axis is time; constant distance", "timestamp": "1578164785"}, {"author": "rmoehn", "source_link": "https://www.lesswrong.com/posts/p4WpQSnTYi4AJfyhS#rYZncJ5AKyqAgaC3B", "anchor": "lw-rYZncJ5AKyqAgaC3B", "service": "lw", "text": "It's a good illustration if you're optimizing by pushing one variable \u2013 running harder. It's not a good illustration in general. Consider my case, which is analogous to yours:\n
My overall goals are health, fitness and wellbeing (as I assume yours is). And I lift weights, for example doing Turkish Get-Ups with a kettlebell. I started this with no weights, then increased to 12 kg, 16 kg, 20 kg. So my metric is weight x sets. Whenever I increased weight, I got injuries/pains. \u2013 First an irritated muscle under my shoulder blade, then pains around my thoracic spine, then a muscle on the outside of my shoulder that felt like it was getting pulled.\n
I could have said that I'm pushing myself too hard and decided to stay at the old weight. Instead I turned other knobs: I improved my warm-up, did some mobilizations and fixed my form, even booking a personal trainer/physiotherapist a few times. Similar things happened with every weighted exercise I'm doing. It's just hard to move correctly. Increasing the load (weight, speed etc.) exposes your faults. Then you fix them.\n
So optimizing my metrics brought me towards my overall goals, continuing to optimize started to bring me away from them, but still continuing to optimize (by taking different actions) brought me even closer to them: greater load plus more correct movements are part of health, fitness, wellbeing.\n", "timestamp": 1578176846}, {"author": "Pattern", "source_link": "https://www.lesswrong.com/posts/p4WpQSnTYi4AJfyhS#MhWPHxm96xdsDiXqn", "anchor": "lw-MhWPHxm96xdsDiXqn", "service": "lw", "text": "I haven't had the OP's problem, but I set goals that was more fixed (X speed, Y distance), and just aimed to be fast enough.
There were two bus stops (let's call them A and B) that weren't too far apart. If on my way to either of them, I noticed the bus going from A to B, I started running to catch up. I also ran other times so I'd get places faster. The goal wasn't 'go as fast as I can to beat my previous time' but 'get places faster'. If you run too fast (for where you're at physically), then you have to slow down, and don't arrive as quickly as you would've if you'd paced yourself more. Also, while you're recovering, you're less able to do other things, and if the goal is decreasing 'travel time + recovery time' then that can mean not pushing yourself too much more (until you improve) once you hit that sweet spot.", "timestamp": 1578337034}, {"author": "Patrick", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100131364147032", "anchor": "fb-10100131364147032", "service": "fb", "text": "Does that mean you can run a five-minute mile, with a backpack, traffic signals, and other pedestrians holding you back? (My calculations: five miles a week is one mile per work day or half a mile each way, and your quickest times are around 2.5 minutes.)", "timestamp": "1578633957"}, {"author": "Jeff Kaufman", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100131364147032&reply_comment_id=10100131385439362", "anchor": "fb-10100131364147032_10100131385439362", "service": "fb", "text": "→ Patrick a 2.5 minute half mile doesn't mean I can do a whole mile at the same pace (I definitely can't)", "timestamp": "1578658085"}, {"author": "Patrick", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100131364147032&reply_comment_id=10100131645273652", "anchor": "fb-10100131364147032_10100131645273652", "service": "fb", "text": "→ A 2.5-minute half-mile is still impressive, especially for someone who's not a serious runner.", "timestamp": "1578718508"}, {"author": "Patrick", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100131364147032&reply_comment_id=10100131645323552", "anchor": "fb-10100131364147032_10100131645323552", "service": "fb", "text": "→ The next time I go to the gym, I'm going to try running 12 mph on the treadmill and see how long I last.", "timestamp": "1578718591"}, {"author": "Patrick", "source_link": "https://www.facebook.com/jefftk/posts/10100130251147492?comment_id=10100131364147032&reply_comment_id=10100131731201452", "anchor": "fb-10100131364147032_10100131731201452", "service": "fb", "text": "→ I lasted about 90 seconds.", "timestamp": "1578773552"}]}