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The Rise and Fall of BioShock

ant says...

I only played the demo. I liked it, but never got the full game. Maybe I should try it again. I prefer SS2 more. I can't wait for SS1 remake since I hated original DOS game due to its bad controls. Also, SHODAN rules.

BSR (Member Profile)

Avatar: The Way of Water | Official Teaser Trailer

mram says...

I feel like I'm the only one who was unimpressed by this.

No story, no hook, no engagement, no emotional resonance, just a NVIDIA/AMD demo reel of graphics.

I did like the first movie. I love all of JC's movies. I still have incredibly high hopes. But just being honest, this played so slow and cold for me. In fact when I watched it the very first time I wasn't sure if this was recap from the first movie or something new.

They are obviously taking the slow burn approach to marketing here... like "hey, memberberries Avatar?"

I am anxiously awaiting something that gives me that "whoa" moment.

Cluster munition used on Stepanakert, Republic of Artsakh

StukaFox says...

"Some damned fool thing in the Balkans."

Armenia, currently on the losing side of this idiotic pissing contest, is trying to negotiate a truce. Azerbaijan has absolutely NO reason to stop, however. Turkey's getting involved, Russia's trying to figure out how to work this to their advantage and Israel is trying to sell more arms after this current "download the demo" of their export munitions.

How the fuck Artsakh ended up in the middle of all this (not speaking geographically, obviously, as it is EXACTLY in the middle of all this) is somewhat beyond me.

Assembly of the worlds largest fusion reactor (ITER) begins

vil says...

Oh yes I take ITER as good news, but it still leaves us 20 - 40 years from a... well I wanted to write a commercial fusion plant, however that might be a trifle optimistic.

Lets say we are at best 20-40 years from a functional prototype of a commercialy viable plant.

ITER is very much a test, any way you bend it. DEMO is waiting for ITERs outcome. Of course ITER will work, tokamaks have operated since the 1960s, that is like claiming a rocket will almost certainly fly. Yet we still stand in awe when it does.

It took 50 years from Einsteins nearly blind-guess prediction of a physical phenomenon to fission power plants. 50 years from the Orvilles hops to jet passenger planes. 58 years from Ciolkovskys crazy drawings to a man in space. In my grandfathers lifetime we went from horse-drawn carriages to the SR-71.
In my lifetime we have gone from landing on the moon to almost maybe landing there again some time.

We are slowing down or the going is getting more difficult.

bcglorf said:

Good news and bad news then.

Proving Whether Masks Stop Covid-19 Transmission

cloudballoon says...

Again like the other video (Doctor's wearing 6 masks at once)... should just demo with the mask ON, spray, then take the mask off and spray ALL in one shot for each distances.

Still it's a simple & effective vid to visually show mask's effectiveness.

newtboy (Member Profile)

NASA Live: Official Stream of NASA TV

newtboy (Member Profile)

siftbot says...

Your video, PS5 Demo, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

This achievement has earned you your "Pop Star" Level 232 Badge!

Ghost Crash

Marvel's Avengers: Embrace Your Powers

Multi-Agent Hide and Seek

L0cky says...

This isn't really true though and greatly understates how amazing this demo, and current AI actually is.

Saying the agents are obeying a set of human defined rules / freedoms / constraints and objective functions would lead one to imagine something more like video game AI.

Typically video game AI works on a set of weighted decisions and actions, where the weights, decisions and actions are defined by the developer; a more complex variation of:

if my health is low, move towards the health pack,
otherwise, move towards the opponent

In this demo, no such rules exist. It's not given any weights (health), rules (if health is low), nor any instructions (move towards health pack). I guess you could apply neural networks to traditional game AI to determine the weights for decision making (which are typically hard coded by the developer); but that would be far less interesting than what's actually happening here.

Instead, the agent is given a set of inputs, a set of available outputs, and a goal.

4 Inputs:
- Position of the agent itself
- Position and type (other agent, box, ramp) of objects within a limited forward facing conical view
- Position (but not type) of objects within a small radius around the agent
- Reward: Whether they are doing a good job or not

Note the agent is given no information about each type of object, or what they mean, or how they behave. You may as well call them A, B, C rather than agent, box, ramp.

3 Outputs:
- Move
- Grab
- Lock

Again, the agent knows nothing about what these mean, only that they can enable and disable each at any time. A good analogy is someone giving you a game controller for a game you've never played. The controller has a stick and two buttons and you figure out what they do by using them. It'd be accurate to call the outputs: stick, A, B rather than move, grab, lock.

Goal:
- Do a good job.

The goal is simply for the reward input to be maximised. A good analogy is saying 'good girl' or giving a treat to a dog that you are training when they do the right thing. It's up to the dog to figure out what it is that they're doing that's good.

The reward is entirely separate from the agent, and agent behaviour can be completely changed just by changing when the reward is given. The demo is about hide and seek, where the agents are rewarded for not being seen / seeing their opponent (and not leaving the play area). The agents also succeeded at other games, where the only difference to the agent was when the reward was given.

It isn't really different from physically building the same play space, dropping some rats in it, and rewarding them with cheese when they are hidden from their opponents - except rats are unlikely to figure out how to maximise their reward in such a 'complex' game.

Given this description of how the AI actually works, the fact they came up with complex strategies like blocking doors, ramp surfing, taking the ramp to stop their opponents from ramp surfing, and just the general cooperation with other agents, without any code describing any of those things - is pretty amazing.

You can find out more about how the agents were trained, and other exercises they performed here:

https://openai.com/blog/emergent-tool-use/

bremnet said:

Another entrant in the incredibly long line of adaptation / adaptive learning / intelligent systems / artificial intelligence demonstrations that aren't. The agents act based on a set of rules / freedoms/constraints prescribed by a human. The agents "learn" based on the objective functions defined by the human. With enough iterations (how many times did the narrator say "millions" in the video) . Sure, it is a good demonstration of how adaptive learning works, but the hype-fog is getting a big thick and sickening folks. This is a very complex optimization problem being solved with impressive and current technologies, but it is certainly not behavioural intelligence.

FPV drone pilot is invited to film a power plant demolition

eric3579 says...

Maybe not a well framed video, but a thousand times more entertaining than just another demolition video. I thought it was awesome to watch as far as demo videos go.

ant (Member Profile)

The Rise and Fall of F.E.A.R.

ant says...

I remember trying its demo and loving it. Then, I bought and played the retail original. It was fun and different. I never played its sequels though.

00Scud00 said:

@ant
Nice retrospective, I had gone back and replayed the original and it's two expansions a little while back. I had totally forgotten that there even was a 2 and 3, so I snatched 2 on GOG for pocket change and I can only get 3 on Steam, so maybe later.



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