WEBVTT

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Imagine a city on Mars.

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People working, learning, making discoveries—and
sharing them with

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people far from home.

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On the Moon, another community has its own local
network.

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Across these worlds, communication follows
different rhythms.

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A researcher records a discovery for a colleague
on Earth.

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His message is ready.

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But a complete path may not be.

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The faster route is blocked for now.

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But another route is available.

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It takes longer, yet it can already carry part
of the discovery.

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Some pieces can travel now.

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Others wait for the faster link,

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making use of both opportunities.

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When the faster link opens, other pieces follow
that route—and arrive

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first, even though they left later.

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At the destination, each piece finds its place.

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Using both paths makes more capacity available.

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The pieces need not arrive in the order they
were sent.

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When no contact is available, information waits
within storage and

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expiry limits.

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PRP applications can retain messages before
transmission and send them

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when contact returns.

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Distance still takes time.

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If a transmission is lost, a relay holding a
valid copy can try again.

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Recovery need not start all the way back at the
source.

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The source retains its copy until end-to-end
confirmation, expiry, or cancellation.

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His colleague receives the discovery.

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Life continues on Mars, on the Moon, and on
Earth. Different networks. Different moments.

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A conversation that reaches beyond the line of
sight.