Tell me how someone anonymous travels from day to day and I will tell you who he or she is. To decouple identity data from other data does already not work in

Tell me how someone anonymous travels from day to day and I will tell you who he or she is. To decouple identity data from other data does already not work in theory. Moreover, it is also in conflict with the ability to retract personal data. If data is anonymized, it is not possible anymore to get rid of your personal records. Homeomorphic encryption is the only method that might make a dent here. Laws will be broken.