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A easy answer. If time is an illusion what is the past what is the future

I’m trying to understand time how come is time an illusion. Yes I understand that it’s man-made how come some people are talking about traveling back in time or in the future of time and some people are saying it’s irrelevant it’s all one thing.the question is how can you put this one thing into a simple word or a simple sentence

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How does IP2IP work?

I heard a lot of discussions mentioning IP2IP at the recent CoinGeek conference in Seoul. I really like the idea of users exchanging transactions peer-to-peer, but I am wondering how IP2IP works on a technical level?

Does it require a daemon/service running on the recipient’s computer that listens for incoming transactions or is there some other approach?

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Provide examples of multi-sig scripts

What are the possible Bitcoin scripts to create a multi-sig transaction? Please provide the script code with explanations.

I would like to see at least two types of such scripts explained (OP_CHECKMULTISIG and the one with conditional OP_IF statements that Steve Shadders showed at this CoinGeek Seoul presentation). If there are more options, please list them as well.

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