Local anaesthesia and data centre: what they have in common

1. Step 1. Local anaesthesia — uses — Syringe. Injections.
2. Step 2. Syringe — is used in — Insulin. Injections.
3. Step 3. Insulin — is used in — Insulin pump. It doses insulin.
4. Step 4. Insulin pump — has part — Microprocessor. A dosing controller.
5. Step 5. Microprocessor — is part of — Server. Processors.
6. Step 6. Server — is part of — Data centre. Thousands of servers.

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