Functional Programming with Effects by Rob Norris

[@butcherless]

Pure thanks Rob. Every time I attend one of your talks I save a day of research for every minute of your absolutely precise and well-reasoned teachings. Thanks again for your excellent work and for sharing it with us. I look forward to your next talk. A very warm greeting.

[@dieduch]

This is one of the best talks about category theory and effectful programming applied in Scala that I’ve seen! Deserves a lot of applauds!

[@mackler]

At 40:20 "Let's talk about Either Again" fourth line is `case class Right[+A, +B](b: A)`. Why is it (b: A) and not (b: B)?

[@mati1979b]

Pure gem, thank you. It takes time to understand when to apply State, Reader and Writer monads practically.

[@sergeibatiuk3468]

I wouldn't be able to digest what Rob says with that speed. Fortunately we have youtube and we can pause whenever we want, but I'm still struggling

[@franciscolopezsancho]

Mind-bending. Thank you so much.

[@tempiadem586]

What are the objects in the "fishy" map? Are they A, B, and C, or are they F[A], F[B]. F[C]? If the former, then pure takes A to F[A] so how can it be an identity? If the latter, it takes F[A] to F[F[A]] and so on.

[@linhe6729]

I love your talks!

[@zhenglaizhang7808]

Really great share, thank you so much!

[@JanekBogucki]

"State is the exit exam for Monads 101" - hoping to graduate!

[@petacardi]

Shame my brain is too small 😭

[@mav45678]

I'd skip the astrophysics interludes in your next talk, they're just distracting - normally, the point of an interlude in the talk is to give people's minds some breathing room, and it's achieved via jokes or memes - but you're forcing people to re-focus on another technical and complex subject matter area. This may make people fell MORE overwhelmed instead of less. Otherwise, an interesting talk!

[@voltydequa845]

Finally! But, but, imho it is more about cosmology than astrophysics. Especially when he came to expanding of the universe, coupled with the supposed redshift out of expanding (in reality just a conjecture). As if his ancestors were there, to witness the expanding. So his is just a kind of cosmological proselytism. Yes, all the rest was interesting.