Both countries have led the global trend in phasing out physical cash, but emerging security concerns are forcing a change in approach.
Officials argue that in the event of network failures or hostile attacks, cash remains the most accessible and resilient payment method.
The shift highlights a broader tension between innovation and stability in national financial systems. While digital payments offer speed and convenience, recent events suthey’rehey’re not yet a complete substitute for physical money in high-risk scenarios.
In Buterin’s view, the centralized digital systems were too fragile to withstand geopolitical shocks, which invariably made cash “necessary.”
According to him:
“Nordics are walking back the cashless society initiative because their centralized implementation of the concept is too fragile. Cash turns out necessary as a backup.”
He suggested Ethereum could offer a more durable alternative if it could operate securely, privately, and independently of single points of failure.
Buterin said:
“Ethereum needs to be resilient enough, and private enough, to be able to credibly play this kind of role.”
He stressed that Ethereum would need to improve significantly before supporting such critical infrastructure. That includes enhancing privacy protections and increasing its system resilience by decentralizing more.
