While watching the video I was thinking I'd put something like that in the description or tags. Until I read your comment I'd completely forgotten about it.

Life imitates art.

Way too long, didn't watch, but I must disagree with the description.
Population control is hardly removed from the debate. IMO it's just ignored when it's brought up because the vast majority of people won't even consider not having children to the point where when China tried to take action and limit couples to one child the world called them draconian monsters instead of intelligent.
I personally often say I think every problem facing humanity and the planet is a function of overpopulation, and I'm not alone. I admit, I'm rare in that I put my money where my mouth is and had a vasectomy in my twenties before having children. I'm of the belief that no other action could possibly have the positive effect that not adding to the population does, but I also bought a full solar system over a decade back and try to grow most of my own food, and I drive well under 5000 miles a year.
There's no reason to abandon population control in favor of technological fixes or vice versa, indeed I believe maximising both won't fully solve our issues that have taken over a century to create, but I also believe not acting in every way possible to mitigate our damages leads to certain doom for most species.
I also think none of this will make a whit of difference in the grand scheme because way too many people have decided making any lifestyle sacrifices or not wastefully living above their means is intolerable even if it means their children suffer for it.

In the description it states that these are comparisons of pandemics. If my google-fu can be trusted, this is not true. The 2009 Swine flu is the only other outbreak on the list considered a pandemic.

Below is google translated of the videos description...

I am very happy to be able to write to you and to be still alive at the moment after having avoided a few crazy bikers by a few centimeters! What do you think ? How would you have reacted? I specify that the biker on the ground is fine, he is doing with his broken arm - He caught the back of the black car that we can see just before. It is not the biker on my right on the ground but the biker we can see right after who is correctly in his lane. Must say that my friend was right behind me at the time! We were very lucky! A frontal at this speed ... Nobody lives ...! V Piston

*backup and replace with FB video in the above description

*backup with FB video before i saw the one in the description.

Bob knight "douchebag" description in 5, 4, 3...

It's NBC and you Canadians are blocked i'm afraid. I have included a link in the description and comment section for those who are blocked.

Adding YouTube Video description as I thought some might like to view the paper they reference in the video.

Our LEGO insulator paper: https://www.nature.com/articles/s41598-019-55616-7

A world leading team of ultra-low temperature physicists at Lancaster University decided to place a LEGO figure and four LEGO blocks inside their record-breaking dilution refrigerator.

This machine - specially made at the University - is the most effective refrigerator in the world, capable of reaching 1.6 millidegrees above absolute zero (minus 273.15 Centigrade), which is about 200,000 times colder than room temperature and 2,000 times colder than deep space.

I didn't straw man anything. His argument was that the animal is about to "go through hell" in "a few days".

My counter is that the animal is not going to go through hell (not abused) and will be living for more than a few days. I backed that assertion up with facts that I am familiar with for the subject matter. I didn't even mention other inaccuracies about the butchering process that really have nothing to do with the animal going "through hell" since it has been rendered unconscious before anything happens.

Does every fact in his description have to be 100% false for his overall analysis to be repudiated? Seems like a high bar for challenging an opinion.

A friend of my brothers has paid $3,000 to join a group who rented it for a day. When my brother looked into going, the numbers were much less than described in the description above.

I think this article gives more accurate numbers https://motionsmag.com/originals/how-much-does-it-cost-to-surf-at-kelly-slaters-surf-ranch/

That's a good description of desert racing....yes.

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/

Heya Lucky.

FYI apparently my browser doesn't like channel talks.

I was trying to remember where the page was that had the channel descriptions, and tried the talk page to see if it was there.

Instead of comedy talk ( https://comedy.videosift.com/talk ) I got this - "Warning: Potential Security Risk Ahead. Websites prove their identity via certificates. Firefox does not trust this site because it uses a certificate that is not valid for comedy.videosift.com. The certificate is only valid for videosift.com.

Error code: SSL_ERROR_BAD_CERT_DOMAIN"

The smooth brain thing reminds me of this guys awesome description of Koalas
https://videosift.com/video/True-Facts-About-Marsupials