Technology and discovery are so cool.
One breakthrough and then a WHOLE BUNCH OF NEW STUFF happens all at once now that this new idea or new pathway is created.
mRNA vaccines break away and now they're testing them in everything. GLP-1 showing signs of use in obesity and now it's being tested for a whole gamut of other things. All very exciting!
This was the framing behind James Burke's Connections if I recall, a wonderful documentary series.