Ah, well I had a more thorough comment typed out, but unfortunately that was on the thread that got locked and the app I’m using on mobile ate my response when it failed to post.
The gist of it though was that I was pleasantly surprised by this episode, as I’m not usually one for the time travel themes. The ending was painful (as in, the writing was very well done) to watch and hit me harder than I expected!
And it was also cool for them to reference DDG instead of Google, I’d be happy to see that sort of thing happen more often on TV.