2026-05-07 Social Tech Briefing Summary

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What’s the best company to have on your resume as tech hiring is being reshaped? (Blind)

Why does Leetcode still exist (Blind)

How to deal with AI slop essay colleagues (Blind)

A Michigan farm town voted down plans for a giant OpenAI-Oracle data center. Weeks later, construction began (r/technology)

xAI will be dissolved as a separate entity. (r/singularity)

TikTok’s algorithm favored Republican content in 2024 US elections, study finds (r/technology)

I’m curious if “I’m curious” is the new em dash AI tell (r/webdev)

LeetCode MEDIUM 1101 The Earliest Moment When Everyone Become Friends Summary

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Quick facts

What the problem is really asking

There are n people labeled from 0 to n - 1. The input is a list of friendship events. Each event has a timestamp and two people, meaning those two people become direct friends at that moment.

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LeetCode MEDIUM 210 Course Schedule II Summary

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Quick facts

  • Difficulty: MEDIUM
  • Problem: Course Schedule II
  • Main tags: Depth-First Search, Breadth-First Search, Graph Theory, Topological Sort

What the problem is really asking

There are numCourses courses labeled from 0 to numCourses - 1.

Each prerequisite pair [course, prerequisite] means the prerequisite must be taken before the course. The task is to return any valid order that takes every course, or return an empty list when no such order exists.

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LeetCode MEDIUM 503 Next Greater Element II Summary

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Quick facts

What the problem is really asking

The input is an integer array nums, but the array is circular. After the last index, the scan wraps back to index 0.

For each index i, the task is to find the first value that is strictly greater than nums[i] when walking forward through this circular array. If no greater value appears before returning to i, the answer for that index is -1.

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LeetCode MEDIUM 777 Swap Adjacent in LR String Summary

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Difficulty: MEDIUM
Problem: Swap Adjacent in LR String

Problem gist

The string contains three characters: L, R, and X. Think of X as an empty space. The only allowed moves are:

  1. XL -> LX, which moves an L one position to the left.
  2. RX -> XR, which moves an R one position to the right.

Given start and end, the task is to decide whether start can become end after any number of those moves.

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OpenAI 20260505 Supercomputer Networking to Accelerate Large Scale AI Training Summary

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What happened

OpenAI’s official engineering blog published Supercomputer networking to accelerate large scale AI training, a post about Multipath Reliable Connection, or MRC, a network protocol and deployment architecture for keeping large synchronous GPU training jobs moving through congestion, link failures, switch failures, and maintenance events.

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Scientific American 202605 Thermal Breakthrough Summary

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Why heat conduction matters

This article turns a materials-science result into a broader question about what physicists think the limits of matter are. Copper has long been the default metal for moving heat away from hot components. Its usefulness is not glamorous, but it is central to modern technology: electronics, power equipment, data centers and industrial systems all depend on getting heat out before performance drops or hardware fails.

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Techmeme 20260507 ChatGPT Trusted Contact will alert loved ones of safety concerns Summary

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What happened

Techmeme surfaced this May 7, 2026 story in its Techmeme item, and the original article is The Verge’s ChatGPT’s ‘Trusted Contact’ will alert loved ones of safety concerns. OpenAI’s related posts on community safety and mental health-related work provide useful context for why the feature is arriving now.

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The Economist 20260425 Chatbot ads Summary

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This summary covers The Economist’s April 25th, 2026 Business article listed in the contents as Chatbot ads and published under the headline The salesman in the machine.

The article argues that artificial-intelligence chatbots are becoming a new advertising medium, not just a new software interface. As more people use large language models for search, writing, coding, shopping and personal advice, the companies running those models are starting to insert sponsored messages into the conversation. That shift matters because it could reshape both the economics of AI and the structure of digital advertising.

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2026-05-06 Social General Briefing Summary

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FedEx driver sentenced to death by lethal injection for murder of seven-year-old in Texas (r/news)

EU Parliament votes in favour of banning conversion therapy across member states (r/worldnews)

Hotels in U.S. World Cup host cities claim underwhelming demand, new report says (r/sports)

What actor is nowhere near as talented as people make them out to be? (r/AskReddit)

TIL there were 180.000 bees kept in the spires of Notre Dame and they survived the fire. Because bees don’t have lungs they weren’t hurt by the smoke, they just fell asleep (r/todayilearned)

David Letterman Calls CBS Owners “Lying Weasels” After ‘Late Show With Stephen Colbert’ Cancellation (r/television)