I love this quote. Can't seem to find the original author to give attribution where due:

#vim is immortal in the nokia brick-phone sense. It's got very few dependencies, it'll survive a drop from a ten foot pole and it's cooperative with like thirty year old technology. It's fast and ergonomic and once armageddon comes you'll shell into the flaming wreckage of a datacenter and edit configs with it. Pure embodiment of the strength and certainty of steel.

#emacs, by contrast, is immortal in the shambling fleshbeast sense. Its thousand thralls write beautiful evocations to pull domains you never could have wanted or imagined from its flesh. It grows cancerously to envelop any domain, any need you may want from it. You can tear out its heart and swap it, still-beating, for a new one. It embodies the ultimate desire to survive. It can send email.