Ages ago as the 1980s turned into the 1990s there was a lot of popular talk about chaos. Chaos theory was one of the newer major breakthroughs in mathematics of the time. For those born since then, this was around the time that the calculation of Pi was either still being worked out or the mathematicians were double checking the final answer before releasing it to the public and after the discovery of DNA sequencing but way before the human genome was completely known and written down.
Back then, only the lunatic fringe of astronomers knew what Pluto really was, or even had an idea and endured the denigration of not only the general public but were held down until that monumental astronomical conference in the early 21st century when the opposition left early and did not bother to vote which allowed Pluto to be reclassified as a dwarf planet and the updated theory that Pluto is the first sing of the Kuiper Belt, and as such, it is sort of correct that it is the last planet in the solar system but that is somewhat misleading because it is clearly characteristic of the next region beyond the planets but still within the pull of our one and only Sun.
The rudimentary basics of chaos theory was simply that nonlinear mathematics can make sense of and become able to make predictable non linear systems. In actual practice, the meteorological sciences have improved during the past 40 years due in very real part to advances in chaos mathematics.