The Philosophy of Space and Time Book

This is my second attempt of rereading it, and finally a lot of it makes sense now. Apart from slight unfamiliarity with coordinative definition, the concept of indefinite metric, and general gravitation, most of the rest can be understood much better now. I like the part that geometry can be interpreted as a result of gravitation rather than gravitation interpreted as geometry - that measuring instruments which probes geometry can be thought as probing gravitational field.

I still did not quite comprehend the argument using stereographic projections. But this book is, in my opinion, so good that I will keep it for very long.

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At my level it is very difficult to understand if I did grasp anything at all. But some interesting views such as the equivalence of geometric descriptions based on coordinative definitions was an eye-opener. That geometry of space time is explicable in terms of equivalence of metric and gravitational tensors was something I could not even grasp a bit.

Given the shallow understanding even after reading it, it warrants me to read again some time in future once I have greater grasp on geometry and physics.