Quote of the day by Robert A. Heinlein: "Everything is theoretically impossible, until…" - why the word "impossible" has such a poor track record

Quote of the day by Robert A. Heinlein: "Everything is theoretically impossible, until…" - why the word "impossible" has such a poor track record

Jun 23, 2026 1

Quote of the day by Robert A. Heinlein:
Quote of the day by Robert A. Heinlein: "Everything is theoretically impossible, until…" - why the word "impossible" has such a poor track record
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