Can one Twitter account lead to every other Twitter account?

Well, I'm sure all of you are aware of the Wikipedia 'Easter egg' that enables a user to follow every first embedded link in each article to an eventual link to the /Philosophy page.

Is it possible to connect to every Twitter account in some sort of linked-list-like fashion by starting 开发者_运维技巧from just one account that follows at least one other account?

Ex:

@Bob follows @Pete.

@Pete follows @Bob and @Susan.

So, from @Pete, you can get to @Susan through @Bob

etc...

I wasn't sure if this is supposed to be asked on the theoretical computer science SE page or here on SO.

If nobody follows poor old Toby and Toby follows nobody then you could never get to him. (Toby just likes the idea of twitter not actually using it) .

'Orphan' accounts (ones that are neither followed nor follow others) would make it impossible for all accounts to be linked.

Even ignoring them, there would still be some 'closed' loops - just like there are in the Wiki Philosophy curiosity/game.

However, it seems you're not the first to wonder about this and there's a good write-up here: http://www.sysomos.com/insidetwitter/sixdegrees/