In my younger days I thought direct democracy was unworkable, but now I realise that might have just been my brain conforming to the bourgeois representative government status quo.
Obviously we easily have the tech to do DD these days, everyone has a smart phone in their pocket, we could do it instantly and on the go. But how you could manage a planned economy that way I’m not sure.
The fundamental problem with electronic voting is that electrons are very small and you can't see what they're up to.
Even if you have a perfectly secure voting system, you can't tell that's actually what's running on the machines.