Slow methodic thuds hit the ground, eyes slowly drawn towards me. Sarah gasped, "Alex, did you-"
"From the moment I understood the weakness of my flesh," I interrupted. "It disgusted me. I craved the strength and certainty of steel. I aspired to the purity of the blessed machine."
John rolled his eyes, "of course he's doing a bit."
"Your kind cling to your flesh, as if it will not decay and fail you," I said, my hands dramatically wide.
"you think he's gonna do the whole thing?" Matt whispered to the others.
"One day, the crude biomass you call a temple will wither, and you will beg my kind to save you."
"He's a theater kid," Sarah bit back. Simply waiting me out.
"But I am already saved, for the machine is immortal..." John sighed. "Even in death, I serve the omnissiah."

"Are you done?" He asked in exasperation. I just nodded.
"So you're a robot now?" Matt asked as he admired my new metallic form. "Data spirit." "What's that?" "A form of mind spirit that specialises in possessing computers and shit," Sarah frowned, "that's a thing?" I shrugged, "god-man said we could become anything. I took the offer," a few glances all around. "So why a robot? You're not planning to go all skynet on us are you?" She ribbed. "She asked the ardent transhumanism advocate," I said with a small smile. "This is simply taken to the logical extreme so I thought, why not skip the middle steps? I get to be fantasy skynet without the genocide and that's both awesome and overpowered." "You sure you can handle all the programmy-computery multitasking bits?" John asked skeptically, I smiled. "That's the neat part about being a type of mind spirit..."

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Not my best work, but it's good enough considering I wrote it on fumes.