In episode 315 of Semantic Mastery's weekly Hump Day Hangouts, one participant asked if there's a limit to the amount of power a link can have.
The exact question was:
Hello everyone. My question is: Is there a limit to the amount of power a link can have? Is it capped or can we send an infinite amount of GSA Spam to a Gsite for instance and get more and more “”linkjuice””?