[quote][b]Posted by:[/b] Mass Cat [quote][b]Posted by:[/b] xi43 [quote][b]Posted by:[/b] dare It costed Chief Cortana to stop the Didact temporarily, his best and possibly only friend gone to delay him. I feel like in the end Chief will give his life to defeat him.[/quote] Its unconfirmed that the Didact is not dead. So until then, he is dead.[/quote] Epilogue pretty much confirms that he is still alive. [/quote] We don't know when he said that, so until I see the Didact in game again or until 343 says he's alive, I will continue to believe he is dead.