(Spoiler warning for mtmte & lost light comics!)
Okay so, remember when Rodimus & company went to to Luna 1, and the hotspot activated? And everyone in story just kinda of assumed that it was Rodimus who did it, as it happened when he set foot on the moon. They just kinda all shrugged and were like "idk he's got half of the empty matrix? Maybe that did it?" And then they all had to move on from that really fast bc Lockdown & Pharma showed up and everything just kind of progressively off the rails.
I get why people just like assume its Rodimus who set off the hot spot bc thats what the characters assume and its not really explored past that. But I think it was something else that set off the hot spot.
See, at the same time that Rodimus stepped down on to the moon, so did Rung.
I am now convinced that Rung is what set off the hot spot, not Rodimus. I really love Rodimus, but when considering what would be more likely to set off a bunch of new life, I personally think it is more possible that Robo-god did so than "guy carrying half of an empty matrix."
Plus, Rung being the one to set it off instead of Rodimus would work with some of the patterns and themes of the comic I think. Rodimus has a lot of his arc about how he tends to center himself and feels like he's the most important and has to be involved in everything. The whole reason that Rung came with him to Luna 1 is bc the previous issue Rung had called him out for sulking abt how he was mad he wasn't the one to beat Overload, and felt bad abt being mad abt. And Rodimus invited Rung to come bc he needed someone to be able to contradict him while Magnus was missing.
Adding to that, assuming that Rodimus was the one who set off the hot spot instead of Rung kind of mirrors how during the sparkeater incident Rodimus assumed he would have the brightest spark, but instead Rung did.
If there is other stuff later in the comic that disprove this, or if someone already has thought of this first, feel free to let me know. I may have forgotten something, idk. Its totally fine if anyone disagrees or has a different perspective on it. I just realized this theory while as I am rereading mtmte currently, and I wanted to share it!
TLDR: Rung set off the Luna 1 hot spot, not Rodimus.