In the wireless future, the download will be taken out of the process, and positioning satellites can direct a hungry diner to the nearest bistro as well as pitch them on another trattoria just around the corner.
One of their most valuable tools was a process called "geocoding, " the conversion of street addresses into global positioning system (GPS) coordinates.
The paper in PNAS suggests that the actual positioning of the motifs is associated with small RNA molecules that are involved with a process called post-transcriptional gene silencing (PTGS).