Is the future inevitable?

I think that the point of chaos is that it magnifies the effects of random events. Small chance fluctuations in a non-chaotic universe would take much longer to have a significant effect.It would also magnify the effects of very small differences, so an apparently but not exactly identical universe would also tend to diverge from ours.

To add to Son Gokus response, a factor not accounted for in an equation could mess it up. But it's not possible to tell that human activity can mess it up in any other way. I've only seen one argument that purports to do so - and that is easily refuted.

quote:

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Suppose I said I'll press this button if that photon goes through the polarizer to the left but I won't if it goes to the right?

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How would doing that be different from wiring up a detector to trigger the button if the photon goes to the left,but not on the right ? How does human consciousness make a difference ?

That's not exactly a convincing argument for the idea that human consciousness goes against determinism

Yes, you only have to give a single example - so long as you show that it is a genuine example. When do you intend to attempt that part ?