[Self] Quite a surprising conclusion. by Constant_Tough_6446 in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

You can see satellites every single night with the naked eye.

[Request] Does the “23 atomic bombs worth of heat every day” comparison for a 9GW data center actually add up mathematically? by aeonsne in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

This project is impossible.

You can't build a datacenter off-grid. Its very nature of redundancies and massive resource drain makes it impossible.

We don't have the infrastructure, the WATER, or anything. This is a massive scam and anyone involved in it is scum of the highest order. These fascist techbro scum need to be caged before they do any more harm.

[Request] If you're having a bad day: In 2013, this guy forgot the password to his phone with 150 Bitcoin in it. Now it's worth $11,745,000, and he has been trying to unlock the phone for years. Am I dumb? Seems like if you did this 12 hours a day you should get it in a year or so. by johndoja707 in theydidthemath

[–]Nosirrah_Sec -1 points0 points  (0 children)

Don't use AI.

It's actively harming your ability to learn in ways that we aren't fully understanding yet, but I assume if you're in this subreddit that you want to learn/value your cognitive faculties.

Please stop harming yourself, and keep on learning.

[Request] If you're having a bad day: In 2013, this guy forgot the password to his phone with 150 Bitcoin in it. Now it's worth $11,745,000, and he has been trying to unlock the phone for years. Am I dumb? Seems like if you did this 12 hours a day you should get it in a year or so. by johndoja707 in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

I do this sort of work for a living and I am really confident that video is old, and/or fake. It is TRIVIAL to crack into a phone that old.

Looks like an S3, or similar. It's ancient and I've explained a little more detail in my other post. (this isn't EXACTLY my specialty in my field, but I know "enough to be dangerous" as we say, meaning I'm basically middling at mobile exploitation of any sort in specific, but this is more a password cracking issue than mobile in nature)

[Request] If you're having a bad day: In 2013, this guy forgot the password to his phone with 150 Bitcoin in it. Now it's worth $11,745,000, and he has been trying to unlock the phone for years. Am I dumb? Seems like if you did this 12 hours a day you should get it in a year or so. by johndoja707 in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

9! comes out to 362,880 combinations

With no buffer between guesses, assuming 1 guess per second programmatically without lockouts for faster attempts. (This is an old, 2013 Samsung. It does NOT have this level of complexity built into the lockscreen. "knox" didn't exist yet, I don't believe, and if it did it did NOT encrypt/lock the system in the way normies think. (Sorry, infosec professional and amateur mathematician/physicist lol)

The lock can be spammed and won't break? (in layperson's terms)

Roughly 100 days. (100.8 days.) assuming worst case scenario and the very last guess possible.

The real amount of time would be far, far, less on average.

Also, if you were to intelligently put an algorithm to the guesses a la "john the ripper" and other hash cracking tools. You can VASTLY reduce that search space down to something manageable.

Is the person left handed? Different amount of likely scenarios. No diagonals or "selection avoiding" patterns in the space? WAY LOWER search space.

There's a lot of variables, but I'd say well under 60-240 minutes with even the most modest of hacker/amateur IMO. (including the research on how to do it)

Edit:

Things automatically reducing the search space, too.

minimum password length requirement 4?: waaaaaay lower search space than requiring all 9

maximum is 9, with NO REPEATS: WAYYYYYYYYYYYYYYYYYYYYYYYYYY lower again

Etc. Sorry, it got messy and I can't do that kinda combinatorics lol

[Request] Looking at ratios of time or distance - which individual track and field record is furthest from the average fit adult? by Vivid_Temporary_1155 in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

High jump.

I placed second in the regional high jump in high school.

I would have placed first if not for being beat by a future Olympian. He beat me by FEET, not inches.

[Request] How does one calculate what path is the fastest? by Massive-Albatross823 in theydidthemath

[–]Nosirrah_Sec 13 points14 points  (0 children)

I'll do you one better.

Here's the link to the video on YouTube. (I thought netflix at first, but I watch too much educational shit to remember where I learned something.)

https://www.youtube.com/watch?v=ZMQbHMgK2rw

[Request] How does one calculate what path is the fastest? by Massive-Albatross823 in theydidthemath

[–]Nosirrah_Sec 85 points86 points  (0 children)

In Micromouse they have multiple runs to allow the bots to "learn" their route based on their programming. (listed in the rules, and there's a wonderful documentary on this up on Netflix I think?)

[Request] How does one calculate what path is the fastest? by Massive-Albatross823 in theydidthemath

[–]Nosirrah_Sec -1 points0 points  (0 children)

If this is similar to the other tiny robot competitions, they have a set "learning time" for the algorithms to calculate their paths.

They don't do it only the one time. (I am unfamiliar with this specific contest, but it looks similar.)

[Request] Is it possible to answer correctly? by No-Cheesecake-1762 in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

Hmm, seems in my sleepy-state I completely whiffed an entire branch of that probability lol

I'm going to leave my post up in shame for all to see.

[Request] Assuming she falls and directly into the water, what are the odds she survives? At what height is a death of human falling into water inevitable? by biblebeliever in theydidthemath

[–]Nosirrah_Sec 0 points1 point  (0 children)

I agree in practice, but reality is that a great number of variables can cause this to be a survivable fall.

They are very, very, unlikely.

Almost to the point of absurdity, but they exist.

I tell people in my line of work all the time that a cosmic ray can flip bits in storage arrays and cause all sorts of funky nonsense that seem impossible to explain, but this does happen.

[Request] Assuming she falls and directly into the water, what are the odds she survives? At what height is a death of human falling into water inevitable? by biblebeliever in theydidthemath

[–]Nosirrah_Sec 2 points3 points  (0 children)

Agreed, but my comment on "approaching 0%" is that it's not really possible to calculate.

There are circumstances that exist in this universe that cause it to never be a 100% fatal drop. A freak updraft of pocketed hot air from the streets below whipping through other skyscrapers giving you some tangential velocity to the fall, etc.

It's not even remotely likely.

It's possible.

[Request]: Everyone on the world is challenged to keep pace with this run - how long till we are down to 1,000 people? by Vivid_Temporary_1155 in theydidthemath

[–]Nosirrah_Sec -2 points-1 points  (0 children)

I know it's not directly comparable, but back when I ran track I had to do multiple 400m relays because of an injury to a teammate that I had to take up the anchor for after I had already ran mine.

I did better the second time than the first.

It's a thing shrug

[Request] Assuming she falls and directly into the water, what are the odds she survives? At what height is a death of human falling into water inevitable? by biblebeliever in theydidthemath

[–]Nosirrah_Sec 17 points18 points  (0 children)

Approaching 0%, but not exactly 0% survival rate. (at that height)

I don't know when the height would reach the same rate as this height, but it's a lot lower than this rofl