It would be ((trick nor treat) or treat) so basically all the non-circle region and the treat circle is filled............
After writing this, i am wondering if you actually needed the information or was it just the funny thing to say...
Guys am I autistic?
I know it's just a meme but they both solve different enough problems. A self-driving car can easily turn back into a non-self driving car, meaning you can self drive for long transit and switch to a normal one in the city or hectic areas. This basically solves the issue of self drive tech not being smart/reliable enough. Which, as you probably also agree, is still quite far from perfect.