Hi Ryan, thank you for your kind comment. Yes, I linked an update at the bottom of this article (link below if you missed it). In essence, the mRNA vaccines do not appear to enter the brain (or any distant organs besides the liver) in notable quantities.

https://medium.com/microbial-instincts/biodistribution-and-spike-protein-safety-of-mrna-vaccines-an-update-788fe58e39b9