Silicon has redefined how we live our day to day lives. Metalloids like silicon have properties of both metals and nonmetals; most importantly, they can act as both conductors and insulators of electricity. These semi-conductors are valuable for electronics, in which we need to regulate the pulses of electricity through a transistor to become a 0 or 1. Places like Silicon Valley (San Jose/San Francisco) and Silicon Beach (Santa Monica) would not exist without this valuable element.
On the periodic table, Si is found under the element Carbon. Because it is in the same family as Carbon (Group 14 or 4A, as seen to the right), it shares many similar chemical properties as Si. All life as we know it has been carbon based, but scientists have long speculated that Si based life might be possible in other solar systems. While it might not be likely, it still fuels science fiction.