Parallels much, coming full circle and such
John has a problematic sister out there.
Sherlock turns out to have a problematic sister out there. Just for parallelism sake.
John looses his loved one tragically. Goes berserk. Breaks down. Has so many things left unsaid.
Sherlock undergoes a live demonstration of what it would be like to lose Molly. Tragically. Sherlock goes berserk. Breaks down. Is put into position to have the words unsaid in the out.
Well, what can we deduce about his heart, Occam’s razor, narrative parallels and all?
And yes, there’s that enigmatic little parallel issue of texting the wrong woman. No loose ends indeed.