[notahacker]

Helicopter money has always been theoretically possible to deliver direct to [most] consumers, with a bit of help from authorities responsible for tax/benefits/pensions, albeit somewhat inefficiently. But half the problem of monetary policy (the more relevant half in the immediate future) is reducing the money in the system when inflationary pressure is high. That's where channelling monetary policy through changes in the interest rate starts to make sense (the reduction is a natural one as people and corporations borrow less, which is a lot less politically painful than withdrawing a direct subsidy or even debiting people's accounts)