also: if I tried my absolute hardest, i might be able to hang with her for 1km, not even 3 laps. 
this boggles me about cheserek, too, but in the other direction. he's doing km repeats at 2:50ish and making it look easy. 8 km plus the two reps at 2 km: 12 km total with rest in between each rep and set. that's a gnarly workout that is beyond the ability of roughly 99.9999999% of the world's population. kipchoge did 42km, straight, at ~2:54; his final two splits were 2:48 and 2:44.
i mean come on.
yup. it's mind blowing.
i recall his first 1km was ~2:43 in that vid. 2:43 is like 4:20 min/mi pace lmfao. Haas was like, "i dont care if it's around 3:00 for the first couple of k's etc" .. then Ches opens it with 2:43.. insanity.
1km @ 2:43 is flying.
these guys are so fast, it constantly blows my mind.
whenever I see splits now, I actually understand how fast they are going. Prior to the end of last year (Dec 2017), 1km or 1 mile splits didn't really register. After this year of training, I appreciate it on another level. The faster you get, the more you appreciate elite performance, because it definitely sinks in how "slow" you are.. lmfao.
