Sicaria can plan the actual training to include no sleep at all, if she prefers.

Does she mean in a skipping sleep with the Force way, or a sleep deprivation torture way? 

Starting with the latter and transitioning to the former. If she's quick enough on the uptake.

She will be.

Noted.

Tiny shiver.

"Will that be a common pattern with learning here? Suffer, until you figure out how to stop it?"

"That is the nature of the dark side. As long as it proves effective, I do not see much reason to soften it for you."

...More serious nod.

"And that's why only two out of five students survived even a year, in your era?"

"Yes. The training was not gentle, and the strength of a student prioritized over the number of survivors."

Hum.

And, almost casually, except for how keenly she's watching Sicaria: "I see why the Jedi won, then."

"The culture associated with that environment was certainly a factor," she agrees.

"Not just that - three students dead is three opportunities wasted."

"The Jedi in my time are powerful - they have systems that make sense, they put every single child anyone gives them to good use, they're widely respected with significant soft power even outside of the Republic, they're not bound by the norms of a government but by those of a religious order - "

"They just hold themselves back. It's pathetic. The galaxy shouldn't be a cesspit like this - people shouldn't die of easily preventable diseases or starve because of a spat between two of the far too many trading syndicates or because no one can figure out basic logistics like shipping because they flat out refuse to coordinate, buildings shouldn't collapse because no one kriffing enforces the construction codes - and people shouldn't wander through life not knowing where their place is, what to do with themselves."

"Three out of five students couldn't cut it, sure. A system that fails to identify who early enough to redirect them to where they're actually useful wouldn't even need an enemy to fall."

"Is it your ambition to construct a better system?"

"Or support someone who will."

"If the Jedi allowed adults to join, I'd probably just try to subvert their systems and use them correctly. Otherwise, I'm stuck with 'the hard way.'"

"I see."

"A chance to restart the Sith but better might be what's needed."

"If you succeed at your training, you may have that chance."

"You wouldn't be interested?"

"Ruling the galaxy, or even a large organization, holds little interest for me, and I am confident that my own desires can be met without requiring such measures. No, I think your largest obstacle would be whatever hidden Sith tradition yet survives in the shadows."

"You're sure there is one?"

"I would be very surprised if there is not. Jedi flinch from the absolute destruction of knowledge, in my experience, and the dark side has a way of fracturing its way through any cracks it can find."

"There's non-Sith darksider traditions I've heard about - but they don't admit outsiders, and they keep to themselves."

"Those existed in my time as well."

"The Sith are also well known enough I'd be surprised if there weren't revivalists, no matter how... Off base they get."

"Mm. Yes."

"Either way, not a problem you will need to worry about just yet. Not while on this planet."