🧵 REPLYING TO @luismbat (Luis Batalha 🇵🇹🇺🇸):

┌─ "Imagine an alien watching Earth from the Moon with a telescope.

For thousands of years: no signs of humans - just forests, oceans, clouds.

Then around 1700 (~300 years ago), cities, roads, and lights appear.

Exponential progress is invisible... until it’s not."

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💬 ELON'S REPLY:

@luismbat True.

If aliens came to Earth before the invention of writing ~5500 years ago and tried their hardest to explain spaceships & supernovas, they would fail.