It's the famous... Mahatma Gandhi!
A drawback might be that there are a lot of people that need to vote in the country of a direct democracy. That is a lot of numbers to keep track of and a lot of time dedicated just to voting.
This could be resolved through an easier way of counting the votes and keeping track of the people who have already voted, such as online voting. It could also make it easier to have smaller districts or groups of people vote in more places around the country. This would make keeping track of people easier. It would also bring down the number of votes that were in each area, reducing the amount of time it takes to count all of the votes.
