[njharman]

Don't Lisp much do you?

Code is data and vice versa. Look up what the acronym JSON means sometime.

[nonchalance]

Code is data but data isn't necessarily code. Even in Lisp.

[TeMPOraL]

The difference is one of interpretation, not of representation; i.e. it's determined by an application, above parser level. When looking just at the written down form, data and code are the same thing.

Code more Lisp and read more Hofstadter ;).