So the cost-benefit analysis approach is quite correct - and my personal take is that “surveillance technology” is another way of saying “external accurate memory” - everything I say or do, everyone I talk to and interact with.

We like having dash-cams because they make other peoples bad driving clear to the judge / insurance agent. Something like that for all aspects of your life seems good and that’s just the personal point. Once we start looking at how to aggregate medical data and provide it to researchers - I mean some doctor has come up with stick on Bluetooth ECG monitors - stick on and record for 48 hours.

The problems arise when the data is used unfairly. Look this guys is (social underdog) - we can use the recorded data to prosecute him. That only gets solved when the judges recorded data shows a clear bias … and we live in a fair open democratic society

If we don’t live in such a society then yea, this technology will Almost always have more cost than benefit - but that’s not the technology.