I don't know how you assess the impact positive or negative here.
The economy is too complicated to isolate one action and then attribute.
You should stick to the bold part. You dont know. Infact you know very little of anything except yapping over things you dont know
Its pretty easy to see the impact. Take charts of data from 6 quarters before , during and 6 quarters after Demonatization and you will know. Literally simple work on excel. Almost any informal sector and labour intensive sector was almost killed if not completely wiped out. Areas where india used to export got hit so bad they probably will never recover. These areas then got hit by GST and they're almost dead. Thats why our exports are lowest in 11 YEARS.
But ofcourse, dont let me come in the way of you peddling the "WE WILL NEVER KNOW" nonsense. 200 people dead, whole sectors killed, exports killed, farmers killed, GDP killed. BUT WE WILL NEVER KNOW if demonatization was a failure, cause bhakts are blind when it comes to the failure of their dicktator.
Modi bhakti is indeed an amazing thing. How does a man so stupid command such bhakti? Guess thats the reason he never does interviews. Don't want to break the illusion.