#explain

[推广] Which AI subscription would you cancel？

Which AI subscription would you cancel if you had to explain your last 30 days of usage? “I'm keeping it because I might need it” is how a side project gets a procurement department. https://micropenis.top

V2EX · EN

Ask Ethan: Can you explain the Higgs boson in depth?

One of the great quests in all of science is to discover, at a fundamental level, what the Universe is actually made of. If you took every amount of matter and energy that existed — or even could exist — and cut it up into its smallest possible chunks, until only something that was uncuttable was left, you’d be left with the fundamental, elementary particles that composed our Universe. In physics, this took us first down to the level of the atom, then to atomic nuclei and electrons, then to protons, neutrons, and electrons, and finally to our modern Standard Model of elementary particles: comp

Big Think · EN

The brain’s hidden fear mechanism may explain anxiety and PTSD

A surprising new discovery suggests that fear may cause the brain to blur the line between danger and safety rather than distinguish them more clearly. By observing brain activity in mice using augmented reality, scientists found that memories of threatening and harmless environments began to overlap, potentially allowing faster responses to danger. This "better safe than sorry" survival mechanism could help explain why people with anxiety or PTSD sometimes experience intense fear in completely safe situations.

ScienceDaily · EN