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Thanks, Carl.
I don't see how I've answered my question though. I'm trying to arrive at a finite number of when you would see me waving back (from your perspective of time), given that I travel at exactly c. Can you please explain how I can arrive instantaneously at precisely c?
I'm thinking, from my perspective it takes me 2 weeks to get there and if I wave back straight away, you would see me waving back 4 years later?
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