Need help understanding the twins

[cfrogue]

No, I certainly wouldn't agree with that, you seem to understand some things but then you make really basic mistakes, like arguing that the past light cone would not look like a contracting light sphere if you plotted it over time. If you want to understand SR, I think you really need to find a text that develops it in a step-by-step manner (http://www.oberlin.edu/physics/dstyer/Einstein/SRBook.pdf . Your posts on relativity seem to be a fine example of this.

No, in fact I did not, I said your argument was stupid and that's all that I meant (if you want my real opinion of you, I think you are probably fairly intelligent but suffering from the type of overselfconfidence issue discussed above). But you love to tell me I'm wrong about the content of my own statements and opinions, apparently.

Yea, anyway, let's operate in the sphere thread with this logic.