Need help to decode async serial signal - pic inside

One thing I could use some help understanding, I don't know how many bytes of info there are in this. robtillaart indicates 2, but I dont see how to decipher this off hand. Can anyone shed some light on where the line between bytes is possibly drawn?

if I look at the image from the left to the right, the very first transition from low to high on the far left, because it appears double wide, do you think that that is both the start bit, as well as a single logic 1?

I'm still a bit in the dark, but will see if I can learn some more, and come back with more specific questions.
Thanks for the info everyone, I'll play with it a bit more from the suggestions made.