Add weekly summary for 05-31-2016

weekly/2016-05-31.md

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+# May 31th, 2016
+
+NB: On Tuesday this week since Monday was Memorial Day.
+
+## Agenda
+
+1. Retrospective on last week:
+	- What went well?
+	- What was challenging?
+	- What did you learn?
+
+
+## What went well?
+
+@joshvera:
+
+- Diff summaries merged.
+- Introduced a new prelude.
+- Pairing with Rick.
+- Alignment!
+
+@rewinfrey:
+
+- Pairing with Josh.
+- Was at MoonConf and enjoyed the conference.
+- Almost finished with Haskell Tic Tac Toe.
+
+@robrix:
+
+- Alignment resolved!
+- Getting diff summaries merged.
+
+
+## What was challenging?
+
+@joshvera:
+
+- Didn't make as much progress on the structure of diff summaries as desired.
+
+@rewinfrey:
+
+- Continuing to adjust to the project.
+- Hit an edge case in Minimax that is tricky.
+
+@robrix:
+
+- Not sure why the line approach in alignment solved the problem.
+- In stack 1.1 you cannot rely on it rebuilding internal packages (must clean and rebuild semantic diff tool)
+
+
+## What did you learn?
+
+@joshvera:
+
+- Learned about the different types of preludes.
+- Learned about an extension in GHC 8.0 that introduces Applicative Do syntax, but is tricky to use in parallel computations because of the order of executation.
+
+@rewinfrey:
+
+- Learned about different recursion schemes (zygotmorphism
+- The transition from thinking about function application to thinking about function composition was an eye-opener.
+- Understanding a lot more about why certain shapes are advantageous.
+- http://livestream.com/accounts/16500216/events/5467460 (first video)
+    - Greg Pfeil's talk: 02:24 Recursion Where FP Hits Bottom
+    - Amar Shah's talk: 04:24 Point Free or Die
+    - Ashley Powell's talk: 05:57 Negotiating Salary for Women in Tech
+    - Patrick Thomson's talk: 06:25 Bracer: Transforming Real-World Languages with Coproducts and Recursion Schemes
+
+@robrix:
+
+- Learned a lot about GHCi debugging.
+- Remembered to question assumptions, specifically about alignment property tests that were throwing results off.
+- Using Arbitrary for purposes other than QuickCheck.
+
+
+## Other Items
+
+@robrix:
+
+- Planning this week about the timeline for staffshipping diff summaries.
+- Planning for a possible mini-summit in late June.