Numbers... compute with numbers...
Interesting topic...
1st history book I'm reading in a year.

And yet, it's boring, like all history books. But the content is good, and the paper quality is great for start fires.

Recommend to anyone who have time to spare.

Who would know the mind of Roger Penrose can be this fascinating. He successfully abstracted everything into 3 different worlds--Platonic world1, mental world and the physical world we live in--and made a close connection between each one of them.
I would recommend this book to anyone who is interested in physics, philosophy or just some mind-opening knowledge.

1. 1. Mathematical world

Just for fun. I like to advance to the gaming field when I'm older.