Unanswered questions in my mind:

i) There does not appear to be any reason to believe that venting the steam would solve the cooling issues, and therefore avert damage to the reactor core. Can you more firmly link coolant solutions to a successful cooling of the reactor?

ii) Can you more firmly address your assertion that a meltdown requires uncontrolled fission? Doesn't a meltdown simply require enough heat to damage the core and/or fissile material? Meanwhile, the term itself is informal and has no set, specific consensus. Perhaps you can begin by defining what you, specifically, mean by "meltdown"?

Thank you.