Add 2 talks and 1 post retry

public/posts/hybrid-encrypted-mempools.md

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+---
+title: "Hybrid Encrypted Mempools"
+authors:
+  - julian
+tags:
+  - mev
+  - cryptography
+datePublished: 2025-10-27
+---
+
+Read post on [ethresear.ch](https://ethresear.ch/t/hybrid-encrypted-mempools/23360).

public/talks/eur-guest-lecture.md

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+---
+title: "Erasmus University Rotterdam, Protocol Design Guest Lecture"
+authors:
+  - julian
+location: "Erasmus University Rotterdam, Rotterdam, the Netherlands"
+startDate: 2025-10-01
+---
+
+See slides [here](https://docs.google.com/presentation/d/1IwZQNrAzJ4oNuOx96gHN2kI97rPP8ldpEooxdWXKbzg/edit?usp=sharing).
+
+Invited by dr. Stefan Obernberger.

public/talks/whiteboard-to-mainnet-pbs.md

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+---
+title: "From Whiteboard to Mainnet Podcast | Episode 3: Proposer-Builder Separation"
+authors:
+  - thomas
+  - julian
+location: "Online"
+startDate: 2025-10-24
+---
+
+Listen to the recordings [here](https://www.youtube.com/live/rw0cWCT79ws?si=YYiRw_fWVUF2gRDD)
+