But if this ever-changing world in which we live in

[dreamer_easy]

Sir Paul is a canny lyricist, often indulging in wordplay ("Maybe I'm Amazed", "Temporary Secretary", "When I met you at the station / You were standing with a bootleg in your hand"). I doubt that jarring repetition is a grammatical error or a slip of the tongue.

Here's my theory:

When you were young and your heart was an open book

You used to

Comments

[murasaki_1966]

What's with the Bond theme songs?

[dreamer_easy]

Bought an album of them off iTunes to get a third version of "You Know My Name". XD

[acelightning]

You've got a point...

[infinitarian]

Isn't it "in which we're livin'"?