Depressed Leech Big-Tech habituate user for free of charge services. For the most users it's not transparent that they pay with their data. It would be interesting to know how is the value of my data is. For a better transparency it should be set that the Big Tech must send an overview to each user how is the value (in €)of the collected date per month/year. The user should be offered different options to pay with data or with €. The question is, what is the impact to the technical progress? Positive or negative.