Paradigm CTO Georgios Konstantopoulos has suggested that account abstraction should have been integrated as a native feature of Ethereum from the outset, following a year-long study indicating no major breakthroughs are needed for its implementation. Ethereum co-founder Vitalik Buterin responded, highlighting that full account abstraction has not yet been achieved. He noted that current implementations require ECDSA or intermediaries, which could compromise privacy and censorship resistance. Buterin also pointed out ongoing challenges related to quantum security and privacy protocols.