Yes, if increasing the brain activities is the goal, our hand writing tool should be brush. Or even better, we can increase the brain workload by introducing th

Yes, if increasing the brain activities is the goal, our hand writing tool should be brush. Or even better, we can increase the brain workload by introducing the artificial burden like pen refuse to emit ink if its sensor doesn't recognize accurate stroke movements or as ridiculous as forcing pen holder to performing one hand juggling with the other hand.