The Monday Morning Macro | May 1

Every Monday, we share a summary of what’s happening in the YC community — from our blog, YouTube and Hacker News. You can also get this in your inbox.

Fooled by Experts by Aaron Harris
Experts are generally right until they’re wrong. Unfortunately, it’s very easy to get fooled into thinking that experts are always right. This is especially true when it comes to trying new things in existing fields. We are biased into believing that knowing a lot about something confers an ability to predict the future.

Data Packages for Fast, Reproducible Python Analysis by Aneesh Karve
The tragedy of data science is that 79% of an analyst’s time goes to data preparation. Data preparation is not only tedious, it steals time from analysis. Data packages make for fast, reproducible analysis by simplifying data prep, eliminating parsing, and versioning data. In round numbers, data packages speed both I/O and data preparation by a factor of 10.

How to Use Responsive Images by Yoav Givati
In the world of responsive web design one core, yet complicated, spec can net you substantial reductions in page size across the device spectrum. In this post I’ll demystify the complexity in the responsive images spec so you can use these powerful HTML attributes on your site.

How to Build a Product: Part II with Aaron Levie
For our second talk on How to Build a Product, we are joined by Aaron Levie, CEO and co-founder of Box.

How to Build a Product: Part III with Jason Lemkin, Solomon Hykes, Tracy Young, and Harry Zhang
Jason Lemkin, of SaaStr, sits down with Solomon Hykes, CEO and co-founder of Docker, Tracy Young, CEO and co-founder of Plangrid, and Harry Zhang, CEO and co-founder of Lob, to discuss their experience building products in our third installment of How to Build a Product.

How to Build a Product: Part IV with Jan Koum
In the fourth and final episode of How to Build a Product, Jan Koum shares his journey as the CEO and co-founder of WhatsApp.

Top Posts on Hacker News
Glob Matching Can Be Simple and Fast Too
Robert M. Pirsig has died
Caterpillar found to eat shopping bags, suggesting solution to plastic pollution
Uber gets sued over alleged ‘Hell’ program to track Lyft drivers
WikiTribune — Evidence-based journalism
Exercise ‘keeps the mind sharp’ in over-50s, study finds
Postal: Open source mail delivery platform, alternative to Mailgun or Sendgrid
Painting with Code: Introducing our new open source library React
How to Become Well-Connected
Evidence-based advice we’ve found on how to be successful in a job 
Is Every Speed Limit Too Low? 
India Is Winning Its War on Human Waste 
Teller Reveals His Secrets (2012) 
Have We Forgotten about Geometry in Computer Vision?
A critique of trends in tech
Getting Closer to Mass Production of Bones, Organs, and Implants 
The Boring Company [video] 
Wikipedia blocked in Turkey 
Stupid security things
Show HN: Sorting Two Metric Tons of Lego
If you opened your PayPal account before you were 18, close it 
How I got an FBI record at age 11 from dabbling in cryptography (2015) 
National Park Maps
Why Use Postgres?