Bitcoin is far away from ideal from tech point of view: 1. Transactions model with multiple inputs/outputs & scripts attached to both sides is heavy(& scriptin

Bitcoin is far away from ideal from tech point of view: 1. Transactions model with multiple inputs/outputs & scripts attached to both sides is heavy(& scripting language had some critical bugs, see Bitcoins' CVE) 2. Bitcoin's proof-of-work is far away from ideal Sybil-resistant anonymous Byzantine Agreement solution as well. 3. Bitcoin is centralized in all aspects. You need to trust ~10 mining parties to join the network, centralization of holding also takes place(early birds/central exchanges), development is highly centralized as well. So eventually it will be replaced with successor(s). After all, even Satoshi thought Bitcoin is experiment, not the final solution to 1000s problems.