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I would be very much interested in reading more about this, do you have any good articles you could point me to?


This paper is a bit out of date, but gives a reasonable overview of the challenges of testing for testosterone supplementation

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2657495/

Paper on challenges of detecting growth hormone

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3830297/

Testing for both of those substances has improved, but still leave plenty of room for abuse.

Use of "unknown" or the constant stream newly developed substances is naturally not rigorously studied, but here's a couple of articles referencing the challenges they pose.

https://thetruthaboutforensicscience.com/undetectable-perfor...

https://bleacherreport.com/articles/1955231-undetectable-the...

UFC is notorious for testosterone TUEs, but that's mostly because they regulate things differently to most other sports

https://www.espn.com/espn/otl/story/_/id/10500652/therapeuti...

Top flight soccer is another sport that's constantly garnering attention for TUEs, but most of the coverage of that is speculative, because other than high level statistics the TUE process is naturally not very transparent (and most of the recent coverage on the topic has been replaced by controversy relating to trans athletes).


Totally agree with this. Lime bikes were garbage (I have not tried their newer redesigned ones, since I swore Lime off). I had a Lime bike literally snap in half at the joint where the handlebars connect to the riding platform WHILE I was riding it. It flung me forward in to the street. Luckily no traffic around. I contacted support and they offered to reimburse me for the ride. No indication they were treating it seriously whatsoever. After that, I can't support Lime at all.


I will no longer give Lime any business after I hopped on a scooter with 30% battery and it died within less than 5 minutes. I was late for work, and my only option was to unlock another Lime scooter after the first died, costing me extra $ for the unlock. I communicated this to their support team and they refused to give me a refund, telling me that I should check the battery life before getting on a scooter (shouldn't 30% enough to go 1.5 miles?)...I expressed my frustration to the survey following up the support and still no refund for the unlock fee. It may seem silly, but that was the straw that broke the camel's back and I uninstalled the app.


Mixpanel | Austin/SF | Full stack, front-end | ONSITE

Mixpanel is a web / mobile analytics company, and we are hiring for our new ATX office. This is a unique opportunity to work with top-tier talent and be compensated as such while helping us a grow our small team in Austin into something bigger.

The product engineering team creates the face of Mixpanel. We organize in small, nimble product groups (two to five engineers in close partnership with PM and design) with huge autonomy over what we build and how we build it. You will own the full stack for your product areas, from database schemas and HTTP APIs to data visualization down to the last CSS detail. A passion for product and empathy for the user are key. Our stack includes Python, Golang, and lots of JavaScript & TypeScript.

See what we’re working on: https://mixpanel.com/product-updates

Remote work is also a possibility for exceptional candidates after a period of onsite onboarding. We have several remote engineers working in this capacity around the US :)

PM me if you're interested!


Can you add a way to contact you in your profile?


Oh. I guess PMs are not a thing huh? Sorry I am bad at Hacker News!


We essentially do do this--duplicates are only looked for in the (project, user, time) shard. It’s certainly more than a handful of pages, but nothing extremely cost prohibitive at all. The indexer dedupes a whole shard at a time, but only if at least one duplicate exists--in the normal case, we just do nothing. Unfortunately, we also can’t control the number of duplicates that we get (since we ingest data from our customers, we can't control how good it is), and a lot of the time, the number of duplicates are fairly frequent due to suboptimal implementations of Mixpanel, making the whole shard deduping a fair tradeoff. We definitely never touch the network :slightly_smiling_face:


By the way, the link to the site is a bit buried in the Techcrunch article, so here it is:

https://mixpanel.com/education


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