Mudslides happen. However, still shots do a poor job of demonstrating the speed and power of these natural disasters. If you are have not had the privilege of seeing one up close, here is video of a 2012 mudslide in Johnson's Landing, British Columbia
Tiny drops of oil can be arranged to write information and read it back remotely, described in this 2014 paper. The oils suspended in water, literally colloids can be written to or read from using both optical and electronic mechanisms. When written to, the information is stored by rearranging the stable pattern of the droplets within a larger grouping. The applications of this technology include mixing the substance into batches of other goods as a marker, high density memory (estimated in the range of terabytes per gram), or memory for nano machines (still being much too large for than application, but showing promise).
Usefully, the structures assemble themselves under the right conditions lending themselves to industrial application.
The line from "The Matrix" summarizes the cool of being able to compress weeks, years, or decades of subject mastery into a data stream. Significant progress has been made since 2004 transferring knowledge between animals and people.
The technology, called Brain To Brain Interface (BTBI) achieved results of successfully transferring information 70%, compared to 50% of the time due to random chance. Not very impressive, but more recent work in people transfers more complex information with a 72% success rate, compared to 18% random chance of getting the same answers.