Viewing profile — Gasparila

Thought exercise because I legitimately struggle with this. Is this fundamentally different than Costco using sales data to choose which Kirkland products to launch/sell? If so, ho…

The author has a long-form blog going into much of a similar topic: http://boringtechnology.club/ . Very nice read

Matz (Ruby lead maintainer/original author) has said that Ruby 2.7 (coming out this Christmas) has JIT improments that make JIT neutral for Rails. The goal is to have it be net pos…

The law has you pay taxes of 1% of gross revenue * percentage of global employees working in an SF office. Even if the headquarters moved (and I'd guess it is already a Delaware re…

There's a .size that works for pretty much everything: if the relation isn't loaded then it will do select count(*), but for arrays and loaded associations it does length of an arr…

One big reason to me: cookie security Currently all buckets share a domain and therefore share cookies. I've seen attacks (search for cookie bomb + fallback manifest) that leverage…

I had one experience reporting a security vulnerability to United's bug bounty program and never want to do it again. I reported an issue to that I could reset anybody's MileagePlu…

Back of the envelope math for birthday paradox is root n. So in this case with ~50% probability you'll get a collision after 2^32 IDs (or after 4 seconds of 1 billion writes a seco…

I had one experience reporting a security vulnerability to a bug bounty program and never want to do it again. I reported an issue to United Airlines that I could reset anybody's M…

Wow that's a lot of dilution for a late stage round. I feel bad for the employees that suddenly have their equity cut by 60%. If I'm doing my math right, ($865 MM pre-money) then i…

This article (and others I have read disliking HPKP) generally take an all or nothing approach. That is to say, they see HPKP as either "pin the key of my certificate" or "don't us…

They still exist and (as far as I know) there are no plans to do anything about them. We (thankfully) were alerted to this issue by HackerOne before it was an issue, but this remai…

https://suclass.stanford.edu/courses/course-v1:Engineering+C... Free videos/slides for Stanford's introductory networking class (linked the Reed-Solomon video)

Each bitcoin can be theoretically split into 100 million Satoshis (the bitcoin equivalent of a penny I guess). The maximum number of bitcoin that can exist given the current system…