The Beatles were time travellers?!?!?!?

Is it possible that The Beatles were really time travellers from the Future?
Is it possible that The Beatles were putting sly (enough to avoid a paradox) references to the future into their music?

Magical Mystery Tour

What leads me to believe this is the song from The Magical Mystery Tour  "I Am The Walrus".

There is a line, not too far from the end that starts "Expert texpert" - Is it possible that they knew the future and therefore future technological advancements and the invention of SMS messages AKA Text messages. With the common verb to Text, or Texting. The noun for someone who is very good at Texting being a Textpert (or an expert working for a text (SMS) based information company)???

I clicked back on my generic mp3 player ;) and listened to the song again, and to my surprise that full line goes "Expert texpert, choking smokers, don't you think the joker laughs at you?"

OMG!!

How could The Beatles possibly know that there would be a mass ban on public smoking in the future? The cosmic joke being the government (the joker) who originally endorsed smoking, now turns full circle and enforces a ban thus "choking" smokers rights??

They couldn't, there is NO WAY The Beatles could have known this unless they were from the Future.

I put this to you bloggers... if The Beatles are in fact from the future is it possible that John isn't actually dead, or George for that matter?
Is it possible that Paul and Ringo just preferred our time? That John went home (or to another time) and when George got ill, he returned to his time when he could be cured (thus faking his own death in an Elvis stylee)?.

Even more interesting than that, is it possible, (dare I mention it), that John Titor was the 5th Beatle?????

I will now embark on a listening to the back catalogue in an attempt to find further teasing references from the future.