Scientific American 202503 The Missing Planets Summary

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A Solar System That Is Not Typical

For a long time, astronomers treated the solar system as a reasonable template for how planets ought to be arranged: small rocky worlds close to the star, giant gas planets farther out. The exoplanet era has broken that assumption. After the discovery of hot Jupiters in the 1990s and the flood of Kepler data that followed, planetary science shifted from studying one familiar system to comparing thousands of strange ones. The article argues that this broader view has created a new field, exoplanet demographics, which looks for large-scale patterns in whole populations of planets instead of treating each world as an isolated curiosity.

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Techmeme 20260416 Salesforce Launches Headless 360 to Turn Its Entire Platform into Infrastructure for AI Agents Summary

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What happened

Techmeme surfaced this April 16, 2026 story, and the original article is VentureBeat’s Salesforce launches Headless 360 to turn its entire platform into infrastructure for AI agents.

Salesforce is making a blunt strategic argument: in an agentic software world, the browser should stop being the main doorway into enterprise software. Headless 360 is its attempt to turn Salesforce from an application that humans click through into a programmable substrate that agents can operate directly. Instead of forcing every workflow through a web UI, the company now exposes platform capabilities as APIs, MCP tools, and CLI commands.

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The Economist 20260328 Winners and Losers from the War Summary

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A Fuel Shock That Reorders Corporate Fortunes

The article argues that the Iran war’s oil shock is doing more than lifting headline inflation or making drivers angry at the pump. It is rapidly redrawing the map of corporate winners and losers. When oil rises from roughly \$60 a barrel to around \$100, and petrol moves from about \$3 a gallon to \$4, the effect is not evenly spread. Some businesses get an immediate windfall. Others are squeezed twice over: first by higher operating costs, then by consumers who have less money left for everything else.

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USHPA Pilot Vol56-Iss1 Flying Together Summary

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Why this article matters

Maddy Huggins’s article argues that inclusion in free flight is not a side issue to be handled after the flying is done. It is part of how the sport survives. Her account of the first Women’s+ fly-in at Tiger Mountain in Issaquah, Washington starts as an event report, but it quickly becomes a case for treating belonging as real infrastructure. Pilots need launches, weather knowledge, shuttles, mentors, and site access. They also need a community that does not make them feel like permanent guests.

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2026-04-17 Social General Briefing Summary

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Acting ICE Director Todd Lyons resigns (r/news)

Millions of Americans are now eligible for Canadian citizenship and many are applying ‘just in case’ (r/news)

Pope: World is being ravaged by a handful of tyrants (r/worldnews)

How would you feel if the top tax rate was 90% like it was in the 1950s? (r/AskReddit)

Whats stopping me from just going to a university, attending lectures and just learning about stuff? (r/NoStupidQuestions)

2026-04-17 Social Tech Briefing Summary

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\$1M+ Offers OpenAI, Meta ASI, and Google - help! (Blind)

  • prTQ31: People are miserable at Meta, every single one I’ve talked to. Mark is killing his own company
  • hdhdhdhdb: Meta will make you work hard even for peasant SWEs, what do you think they will do to people getting paid millions

AI LAYOFFS ARE HERE. Mass Layoff in ServiceNow. QE department eliminated (Blind)

  • TomDcHarry: I have a question, Microsoft did this too. They made all testers -&gt engineers back in 2013. So, is it that kind of transition or is it they r legit laying people off?
  • clear-mind: Yes lets move QE to dev so we make more mistakes and catch less

Allbirds stock tumbles after nearly 600% rally as the shoemaker rebrands as an AI company (r/technology)

Virginia voter support for new data centers collapses from 69% in 2023 to 35% in new poll (r/technology)

Laid off today and wife is expecting in August. (r/cscareerquestions)

LeetCode HARD 124 Binary Tree Maximum Path Sum Summary

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Quick facts

What the problem is really asking

This problem is easy to misread at first.

The path does not have to start at the root, and it does not have to end at a leaf. It can start anywhere and end anywhere, as long as it follows parent-child edges and does not reuse a node.

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LeetCode HARD 44 Wildcard Matching Summary

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Quick facts

  • Difficulty: HARD
  • Problem: Wildcard Matching
  • Main tags: String, Dynamic Programming, Greedy

What the problem is really asking

The pattern contains two special characters:

  • ? matches exactly one character
  • * matches any sequence of characters, including the empty sequence

The match must cover the entire string. That is the part that makes the problem interesting.

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LeetCode HARD 60 Permutation Sequence Summary

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Quick facts

What the problem is really asking

The numbers 1 through n can form n! different permutations in lexicographic order.

The problem asks for the kth permutation in that ordering without generating all the earlier ones first.

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LeetCode HARD 68 Text Justification Summary

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Quick facts

What the problem is really asking

The input is a list of words and a fixed line width. The task is to break the words into lines and return the exact text layout that a formatter would produce.

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