The energy to generate the 2.4GHz signal is already being lost; I don't believe that placing a spintronic device attenuates the signal in any meaningful way. In

The energy to generate the 2.4GHz signal is already being lost; I don't believe that placing a spintronic device attenuates the signal in any meaningful way. In certain ways it's similar to tidal energy; one small tidal generator is not going to have any measurable effect on an ocean-scale system. The power absorbed is measured in microwatts whereas the power consumption of a consumer router is measured in watts.