There’s no love lost between venture capitalist Marc Andreessen and activist investor Carl Icahn, who spent much of the last year attacking each others’ character while Icahn was trying to convince eBay Inc (NASDAQ:EBAY) to spin off PayPal into a separate company, and now Andreessen is using Icahn as his go-to example of harmful activism, comparing him to the evil Captain Kirk in an interview on CNBC’s Fast Money. “Activism is one of those terms like hedge fund, it depends what you mean. Activism in the form of Ralph Witworth is fantastic. I can’t say enough good things about Ralph,”…