Lisp Questions

So I have some questions about lisp. I've been learning programming but I hear some conflicting information so I need some things cleared up.

First of all, I keep hearing that the ability to wrote code others can read is huge, but since lisp is incredibly hard to read, wouldn't that make lisp programmers inherently bad programmers?

Also, can someone post some non-trivial lisp code? Every time I see someone post lisp code it's always something very short and trivial. Is it possible to write anything real with lisp?

>>54
Yes but what is in question is using arbitrary precision floats versus arbitrary precision rationals. This should be a no-brainer, even if you're still truncating the floats after some non-hardware-supported-level of precision. Floats are not particularly well-behaved and understanding how errors compound is highly calculation dependent.  Choose one formula and you need three times as many bits just to avoid losing precision from the input value. Choose another formula that should be mathematically equivalent (say, manipulation through trig identities), and you don't need the extra precision at all. This kind of result using continued fractions is impossible.