- Optical stimulation methods are ineffective for unmodified human brains, highlighting the need for genetic modification to enable optogenetic control.  
- Rabies virus is discussed as a proven and efficient vector for delivering optogenetic constructs into neural tissue, despite its ominous reputation.  
- A Nature Communications paper, “Polygenic prediction via Bayesian regression and continuous shrinkage priors,” is shared as a resource for improving genomic prediction models.