đïž This blog delves into the question: âWhat is spacetime?â We explore its mathematical and philosophical aspects and connect them to concrete sensations. Our goal is to describe space and time through what you can see, touch, and hear.
We live in spacetime; it is our home! Letâs get to know it.
Who is this blog for?
Some parts are intuitive and accessible, while others require technical knowledge of group theory and topology.
About Me
Iâm a nomadic data scientist passionate about science and meditation.
Meditation can make one perceive the world as sensations, including space and time, and even the self, a concept known in Buddhism as âno-self.â After some profound experiences, I read works by PoincarĂ© and Piaget (see resources), which deepened my perspective. This led me to start this blog.
Feel free to reach out!
Acknowledgements
Many thanks to Judah @im_stillshining for realizing Le petit poucetâs spider. Thanks to Vivek Claver for reviewing some of the content.
Licenses
You are free to use and redistribute this work, even commercially, as long as you include a reference. More precisely:
- Articles are licensed under a creative commonâs Attribution 4.0 International.
- Code is licensed under MIT license.
Resources
Interesting content at the intersection of mathematics and perception.
Terrence Tao blog
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Grothendieckâs definition of a group
Defining a group in terms of a special Sheaf. -
What is a Gauge
The relationship between group and connections.
Other
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Poincaré, H. (1905). La Valeur de la Science. Paris: Ernest Flammarion.
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Piaget, J., & Inhelder, B. (1956). The Childâs Conception of Space. London: Routledge & Kegan Paul.
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Piaget, J. (1969). The Childâs Conception of Time. London: Routledge & Kegan Paul.
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âThe Two Culturesâ C.P. Snow
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Alternative Science Respectability Checklist S. Carroll