In some ways this reads to me as follows: 'why are people wasting time making things they want to use instead of just using this thing that already exists?' whe

In some ways this reads to me as follows: 'why are people wasting time making things they want to use instead of just using this thing that already exists?' when the answer is obviously that they aren't happy with the thing that already exists. Why did Bram Moolenaar create vim instead of just using vi or ed?