Quad Core. At this rate, laptops are going to catch up with razors.
That cool safety razor from the middle of the 20th century? That's like the VIC-20 of razors. Since then, we've grown and grown. Now you can get a razor with something like 300 blades. Maybe one day computer technology will advance far enough that it will tell us to stop adding blades to razors. So far, quad-core is looking pretty promising.