Rocket stage and internet: what they have in common

1. Step 1. Rocket stage — is part of — Multistage rocket. Each stage is tanks and an engine, dropped once spent.
2. Step 2. Multistage rocket — evolved into — Reusable rocket. The first stage returns.
3. Step 3. Reusable rocket — is used in — Satellite Internet. Cheap launches of constellations.
4. Step 4. Satellite Internet — is a kind of — Internet. Internet access.

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