Wentworth Miller has revealed that he has autism. The “Prison Break” star posted a blank white square on Instagram Tuesday, alongside a lengthy caption explaining that he received a formal diagnosis of autism a year ago. Calling it “a long, flawed process in need of updating,” Miller, 49, admitted that the news was “a shock but not a surprise.”

The Princeton grad wrote that he will now be “re-examining 5 decades of lived experience thru a new lens.” “Oh – this isn’t something I’d change,” he continued. “No. I get – got – immediately [that] being autistic is central to who I am.

To everything I’ve achieved/articulated. “Oh – I also want to say to the many (many) people who consciously or unconsciously gave me that extra bit of grace + space over the years, allowed me to move thru the world in a way that made sense to me whether or not it made sense to them… thank you.

“And to those who made a different choice… well. People will reveal themselves. Another gift.”