I miss Banner. He'd be following.

[points at the screen, but there's nothing coherent in it yet so he turns to Steve with a sigh]

I was thinking, Natasha isn't going to do anything unless Bucky suddenly turns into the other guy. And that's stressful for both of you because we don't have a time-frame for that. We can't mark our calendars and wait for it, and if it happens when you two are not in the same general area it's gonna get problematic.

So, I can make something. Simple technology, if Bucky's pulse disappears it can warn you. So, accessories. Are you following now?