what about Calvinball? (best image I could find, apologies if it's not ideal) ht... | Hacker News

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achenet 11 months ago | parent | context | favorite | on: Children need risk, fear, and excitement in play

what about Calvinball?

(best image I could find, apologies if it's not ideal) https://qph.cf2.quoracdn.net/main-qimg-8a9efc9ebb63702cc0a26...

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