<p>Thus many theorists conclude that intergalactic travel is practically impossible. However, relating this problem to the dimensions may solve it. Since n-dimensional objects can sense n-1 dimension, if we assume that the extra terrestrial beings are composed of five or higher dimensions, they will be able to be in control of the fourth dimension, time. In other words, like tachyons, other life forms may be capable of shortening the time factor , and thus making the seemingly endless journey into something feasible that can be done in ones life span.
The Calabi-ian shape was indeed something way interesting. The fact that the complex dimensional object can be geometrically represented on paper was surely, intriguing. Through Elegant Universe, I feel that I was able to second-handedly witness what really drives the research physicists: the sheer thrill and rush of endorphins after encountering on stimulation ideas. Now I see that physicists are real humans who can be very humorous too, not mechanized computers.
Above all however, I really appreciated Brian Greens ingenuous examples and analogies that allow mathematically and physically illiterate people like me to visualize and understand profoundly abstinent and obtuse concepts. The elegant universe is truly a must-read for everyone mildly interested in physics.</p>