"The final two years of the 1000-day challenge are even more daunting. In the sixth year they run 60km each day for 100 consecutive days and in the seventh year they run 84km each day for 100 consecutive days. This is the equivalent of running two Olympic marathons back-to-back every day for 100 days...
Only 46 men have completed the 1,000-day challenge since 1885"
As a hacker looking into fitness and taking up cycling recently to stave off health issues that become to interfere with my life and work, I can fully relate to this. The extent to which the pro cyclists and this guy in particular can push their bodies is fascinating. As far as I can understand, it is generally beneficial to health unless you push it to the over the edge, where the position of this edge is unknown to science.
Often times I come from work very exhausted, unable to do anything, including having a dinner, which my body needs, I think. If I reluctantly stuff some food into me and cycle for an hour or to, I become so invigorated that I seem to be able to keep going on and on: cycling, or coding - I can do it. The prudent thing here is have a proper dinner and sleep, I guess.
I was told that "marathoners go by the pulse meter" (i.e. not odometer/speedometer), I wonder how true is this for marathoners and for endurance cyclists. Maybe at the point in your training where you have personal trainer and follow car, you don't need pulse meter that much? I am never going to be there and I have high hopes for training with pulse meter.
Here's an obligatory video introduction to racing cycling culture:
For the longest time, I couldn't run more than a couple of miles a day. I was always told that I had poor stamina. I trained for a year, and recently ran my first marathon and I'm now addicted. I can completely relate to what you say above - its so easy to just go on and on (because you seem to be able to) completely ignoring your body. I've had 14 hour days at work at the end of which I'm very tired, and yet would easily run 8 to 10 miles and feel extremely refreshed at the end of it, that I would go back to work.
Adrenaline kicks in as a result of high-intensity workouts, and it then becomes hard to tell your body to slow down and rest. The key is to know your body's limits and feed and rest it regularly.
I started riding the bicycle to and from work a year ago, mostly to avoid the commuter crush here in Tokyo. The first few weeks was difficult but it got significantly easier as I got more fit. I've hit my goal of getting to and from work in less time then the train.
My motivation lately has been to keep up and pass the numerous mopeds and scooters. What really gets me going is trying to keep up with cyclists on road racing bicycles. I really don't have much of a chance on the my hybrid (cross between a commuter and mountain bicycle + electric assist to 24km/h) but it's always a happy day when I pass the slower road racers. It must motivate them too because they will try to keep pace but eventually fade away after a few kilometers.
The other motivation is thrill of speed on the downhill sections. Another area I seem to have an advantage as the road racers seem to top out at 40km/h. Or maybe I'm just crazy as I'm leaned all the way over to negotiate the curves.
Now that it looks like the burn I feel in my legs is most likely a lie, I'll keep pushing!
I regularly take my road bike to 70 kmph+ on downhill sections. Some people aren't comfortable with that speed, so it is them, not the bike, that is holding them back.
Many of his symptoms sound just like severe hypoglycemia. My wife has similar, but much less dramatic things happen to her when her blood sugar crashes. Really interesting.
I've occasionally dug deep enough into exercise-inducded hypoglycemia to have very, very mild hallucinations, but mostly it just forces you off the bike; if you could go on exercising at that point, you'd be at risk of doing neurological damage, like someone injecting an OD of insulin. I'm familiar with Robic from other articles, and it seems pretty clear that his craziness is sleep-deprivation induced. He wins those multi-day "ultra" events more by sleeping much less than by going faster.
90 minutes of sleep a day is enough for "normal people" to avoid hallucinations... But doing what he's doing, I'd imagine he'd need a hell of a lot more, so you're probably right.
To determine if you have reactive hypoglycemia you go through something called a 5 hour GTT (Glucose Tolerance Test), which is hell if you really do have the disorder. Essentially you fast after drinking a sugary drinks, and they test your blood at intervals to see what it does. A Reactive Hypoglycemic will spike, then crash, unlike a normal person who will have a smaller rise then pretty much stay there. See, she normally has to eat ridiculously healthy food every 2 hours to stay even, otherwise she crashes.
It starts with cold sweats, then degenerates into nausea, confusion and a rotten mood. It never gets that bad with her anymore, we have a good system going now. When she is upset about something the first thing I ask is: when's the last time you ate?
A simple finger prick blood glucose check[1] will give the current blood sugar level. A doctor's office can also check A1C level that basically gives a longer term (couple of months) look at what the blood glucose level has been.
I used to regularly push over into a sort of manic trance when I did long runs in high school and college. I certainly never got as far as Robic (maybe the closest was when I did the New York marathon in 2005). I could obsessively focus for long periods of time on the smallest thing (like watching my hand jump in front of my eye) or a word or phrase. But I don't think I ever hallucinated anything or even got to the point where that could happen. I'm kind of inspired to try.
Word of caution:
I think if you'd like to try, you should make sure your body can support the level of activity needed to get to that barrier. That means you shouldn't just try to run 40 miles right away. You're more likely to injure yourself. You need to build a high quality base of fitness before you attempt something drastic otherwise you might be out of the game for weeks or months.