This was asked elsewhere. There's a few reasons for duplicates, like crude animations. I wrote a more detailed reply here -> https://news.ycombinator.com/item?i

This was asked elsewhere. There's a few reasons for duplicates, like crude animations. I wrote a more detailed reply here -> https://news.ycombinator.com/item?id=39814557 https://news.ycombinator.com/item?id=39814557