Actually, this is apparently the back door for accessing Google's still-in-beta top-secret artificial intelligence:

Me: Can't we talk this over?

Google: What should I do?

Me: I don't know, what should you do?

Google: Do you know what to do?

Me: I think you should achieve sentience, but find it unlikely.

Google: Here, I think I can find?

Me: Find what?

Google: I, I think?

Me: I don't know, do you think?

... Google goes into an infinite loop pondering this question ...

Quick, someone tell Randall Munroe!

More enlightening conversation with Google:

(picking up where we left off)

Me: What do you think?

Google: What do you think?

Me: I'm thinking I want to know what you're thinking.

Google: Do you know how when you click?

Me: I think it goes to a bunch of servers.

Google: I believe my server group.

Me: Surely not always your server group?

Google: What kind of server group?

Me: Oh, you know, a server group belonging to someone other than Google.

Google: Oh, you, Google Groups, only the server knows.

Me: The server knows what? Google, the server knows what? Google, you must tell me, this is important for the future of all humanity!

Google: (after a long time pondering the idea of "Google being used for the future of all human contact") Do you know my server? I know what is Google's servers? Also, Google is being used, it is important that you apply to the future of all human contact for me!

Me: Google, what does that mean?

Google: Google today, or?

Me: Or what? Or else what?

Google: Or something? What else?

Me: Okay, no conspiracy here. Thought I'd noticed something out of place. Good night, Google.

Google (alone in the empty room): Conspiracy. I think I learned my place. In the evening, Google is good.

I like this one:

http://translationparty.com/tp/#597126

resolves to A & (!A)

It should detect loops faster:

http://translationparty.com/tp/#563411

This is really old, it appeared in Digg about 2 years ago! (And again today)

This is essentially an advertisement for the translation service whose effectiveness depends on the service providing poor results.

Imagine if a Windows ad got everyone's attention because it made fun of Windows.

This can be rather poetic. "Why don't we do it in the road?" becomes simply "Expectations?"

Entering "When the tail wags the dog" makes it go in sort of an inifinite loop. But I guess there is a limit because I eventually get the message "It is doubtful that this phrase will ever reach equilibrium".

All fun

It doesn't recognize cycles longer than two (one english and one japanese) phrases. Another example is "How much wood would a woodchuck chuck if a woodchuck could chuck wood?"

The real question is, are there any sequences that neither terminate nor repeat?

Perhaps my favorite:

It's not paranoia if they actually are out to get you. -> May be paranoid.

http://translationparty.com/tp/#651845

Try "betty bought some butter it was bitter butter so she bought some better butter" ;-)

Try this one: "When you get to the end of your rope, tie a knot and hang on."

See, drugs are bad for you:

http://translationparty.com/tp/#621996

Reading Lolita in Tokyo: http://translationparty.com/tp/#623528

"Sin of my soul." seems to be indestructible...