The Glass doesn't do much computation locally, so it can't do a good job of "building a profile about you". It requires a linked phone to do most of its magic (e.g. GPS navigation).
So, really, the question should be: "does it frighten you that you're constantly carrying around one of the most sophisticated, widespread monitoring devices ever invented, in the form of your smartphone?"
The answer to that is that I acknowledge these devices generate a lot of data, and I take some moderate steps to restrict how much data they actually get. My Nexus 5 runs a modified KitKat that turns off most of the tracking stuff, for example.
Doesn't farming processing out to the cloud make it do a _better_ job of "building a profile about you"? If the device could do local computation, it wouldn't need to be sent up to the mothership...
I'm not sure I was clear before. As far as I know, it is not "farming processing out to the cloud". The processing happens on the phone you're carrying.
In other words, if you already carry a smartphone, you are presumably not giving Google substantially more data than they would already have from your use of the smartphone. And, as I said, it seems like it's easier to control Google's access to data on your smartphone than on Glass (custom ROMs, etc.).
I haven't tried flashing my Glass yet with anything other than the stock ROM, but I know people have done this with success. So that route is open if you want to really lock it down.
The Glass doesn't do much computation locally, so it can't do a good job of "building a profile about you". It requires a linked phone to do most of its magic (e.g. GPS navigation).
So, really, the question should be: "does it frighten you that you're constantly carrying around one of the most sophisticated, widespread monitoring devices ever invented, in the form of your smartphone?"
The answer to that is that I acknowledge these devices generate a lot of data, and I take some moderate steps to restrict how much data they actually get. My Nexus 5 runs a modified KitKat that turns off most of the tracking stuff, for example.