If you judge on aggregate then "Every great technology developed to date has been a net positive" is nonsense.
You cannot judge aggregate positively and conclude that therefore each segment was positive.
> If you judge on aggregate then "Every great technology developed to date has been a net positive" is nonsense.
It's not nonsense. If you think so, provide one great technology that has been a net negative.
> If you judge on aggregate then "Every great technology developed to date has been a net positive" is nonsense.
It's not nonsense. If you think so, provide one great technology that has been a net negative.