But the evolution of computer security is not merely some dark mirror, passively reflecting advances in technology.
Most of us understand that our perceptual systems, far from passively reflecting the world around us, actively sort, select, distort, ignore, and alter a huge amount of information in order to construct reality as we experience it.
By implication, then, when a direct measurement of physical reality occurs it merely passively reflects rather than actively constituting that which is observed.
Targets emit power either because they passively reflect the energy of other transmitters such as radar or because they are active sources such as cell phones or transmitters mounted on smart cars.
But even under this argument, financial markets are merely a mirror -- they passively reflect the economy, but do not actively affect it.
Droplet-bound BicD levels could be actively controlled, or could passively reflect changing embryonic levels of BicD.
These effects may passively reflect environmental conditions that constrain maternal ability to allocate resources to offspring (e.g. see Mousseau and Dingle 1991; Karell et al. 2008).
For individual pairs of cells, this peak, especially that with a long peak time, might just passively reflect the fact that they had firing fields on the same trajectory, not necessarily reflecting any functional interaction.
A computer screen, for instance, actively pumps streams of photons into the user's eyes, whereas a printed page relies simply on ambient light being reflected passively from the ink and paper.
Which component is most important is likely to differ in different settings but a comparison between passively identified incident cases reflected in the notification system and actively identified prevalent cases in a survey may provide additional insight into the role of the service component as a contributor to observed sex/gender discordances.
