Tesla CEO Elon Musk appeared to fire back Wednesday at proverbial fake news and attacks on him from the press, sharing an adjusted version of a popular meme featuring the human brain.

Musk has been the target of criticism, largely from left-leaning outlets, in the weeks since he announced his bid to buy Twitter for about $44 billion, and bring the social media platform more in line with free-speech principles.

Earlier Wednesday, Musk shared the enlightened-brain meme, featuring three levels of proverbial enlightenment through increasing neural firings.

"Publishing factual, accurate news," read the caption on the first, average-brain level. 

"Publishing articles that use clickbait and out-of-context quotes," read the second, with the brain in question growing brighter.

"Publishing articles that are inaccurate, slanderous, and include at least one accusation of being a nazi," read the final evolution, which according to Dictionary.com is to show a brain "exploding with enlightenment."