Reboot, a nonprofit Jewish think tank, has come up with a new version of Shabbat, and if you notice a lack of Jews on the Internet, starting about now, you'll know why. Shabbat, observed sundown Friday to sundown Saturday, usually involves traditional Jewish meals (including bread, wine, and meat and/or fish), prayers, lighting candles, and spending. Reboot's "Sabbath Manifesto" takes a different approach. Instead of observing traditional modes of rest on Shabbat, it recommends we use that day to unplug ourselves from our connected lives.