miniblog.

Over a sufficiently long time horizon, all code you write is legacy code.

If the latest version is the cutting edge or even bleeding edge, would a legacy version be a dull edge?

I've heard the term 'mechanical sympathy' for the ability to write efficient code due to understanding how a CPU works. Is there a legacy software equivalent? 'Architecture sympathy', where you've worked out the structure that the author intended and things begin to make sense?