In the Star Trek Discovery episode S01:E13 What's Past is Prologue we see a spore landing on Tilly's shoulder.
There is some speculation about this:
- An opening for Hugh to return?
- Mirror Lorca possession?
- A tardigrade egg?
- some personality remnants of the real Captain Killy.
My question is: What was the significance of the spore that landed on Tilly's shoulder in Discovery?