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I think x will be 1, that is to say max contribution in first 12 hrs is 1 ETH. Well, this is my interpretation.

So can we contribute again after the first 12 hours??

if not sold out yes.

I think it's just because they want to start the contribution with 1 ETH. So 8000/2000 = 4, then 4/4.

I think the outcome of "Hard cap / no of participants"

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