The lesson from what’s app – so I sent a message and then decided to delete – when I deleted it I realized that the difference of its existence or not is simply data – in fact if you took all the data on the internet which is effectively all human invention innovation etc. it would weigh no more than a paper clip – in fact if you took all the data of every atom, namely it’s actual mass, the sum total of all physical data would be the size of a single mustard seed