Justin Bons, founder of Cyber Capital, predicts Bitcoin may collapse within 7 to 11 years due to declining miner revenue and increasing vulnerability to 51% attacks. He highlights the unsustainable economic security model of Bitcoin, exacerbated by block subsidy halvings and limited transaction fee revenue. Bons also warns of potential 'bank-run' dynamics and a death spiral caused by miner shutdowns during price crashes, which could further destabilize the network.