Actually, the wiki article states that that isn't true. Under the Chain Analogy
Even though the weight of the fluid in the upper siphon section is greater than that in the lower container, the fluid still flows downwards.
I liked this line from the wiki article:
And I think it all depends on what kind of siphon you're talking about. The vacuum siphon video implies that the chain analogy is correct, in that instance.
But under atmospheric pressure, a broken siphon(one with an air bubble) works also.
But I think you can still use the chain analogy here also, as long as there are pistons at each end of lots of little chains.
Hence my new "Infinite layers of jello shots siphon" model.
Which I will explain in about 23 hours, as I'm late for work again.