Hacker Newsnew | past | comments | ask | show | jobs | submit | budman1's commentslogin

as of 12 noon CST, it pings but does not telnet.

Those non-deterministic results are exceedingly rare.

As long as the machine is part of the larger universe, and not completely isolated in its own bubble of space-time (an impossible situation, an object without an environment) - it cannot be purely deterministic because of the fundamental nature of physics.

So your theory is that arithmetic is nondeterministic because very rarely a calculator will say 1+1=3.

Arithmetic is deterministic, because it is abstract. A calculator or computer is not, because it is physical and exists in a non-deterministic universe. But with error correction, etc., it's deterministic enough for practical purposes. For more in-depth explanation, start with https://en.wikipedia.org/wiki/Indeterminism

When human input is involved, like I described elsewhere, it happens frequently.

why the hate on DDS?

seems like a perfect fit.


DDS is the least bad of the stuff that has come out of OMG, but it's not a nice middleware still. There is no underlying algebra of that composes nicely when compared to Zenoh for example, and the "vendor independence" and compatibility is usually a joke. There's a reason ROS is moving away from it again.

There's a standard that has OMG as the acronym? OMG. I'm not even going to bother to search for that!

Object Management Group I think. Better known as the inventors of UML.

UML was phase two of OMG. It originally developed CORBA.

"The horror, the horror."

Forgive the ignorant question, what made CORBA terribile?

I only used it during university and it seemed overengineered but it mostly worked, and I vaguely recall IDL to be nice.

I'm guessing interop was actually atrocious?


Synchronisation based on spooky action at a distance of mutable objects.

CORBA had the concept of distributed objects which is a terrible idea in practice.

Also BPMN, CORBA and UPOS/JavaPOS.

It's funny that you can legitimately just add " - OMG!" in the slang acronym meaning after any of its creations' names.


They also merged the concepts of Working Group and Task Force into an Open Management Group Working Task Force, or OMG/WTF.

Do you have any references for this? It is quite a bold statement to make without any basis to validate it against.

I'm asking as I'm not a fan of DDS, so very curious the direction they are actually heading into, and I haven't found a reference for this yet.


omg is retarded

Using DDS to deliver data to X machines over multicast, with some real time (soft) QOS is a powerful solution.

For things like avionics, industrial automation, etc.

I think if the server world ever thought about the advantages of multicast, it might solve some problems there.

There are about 5 viable vendors in this space, and about 6 open source projects out there floating around.

And interoperability between vendors is very good. IMHO.


DDS is terrible.

DDS is hard. But we have agents now.

There are two kinds of lots. 'normal' lots will sell a car, and the financing comes from a finance company. could be a bank, could be a credit union, could be a business that provides money to car purchasers. the normal lot has markup on the price, and also gets a kickback from the finance company. the car buyer does not pay, the finance company has a problem.

'buy here, pay here' lots sell a car, and do the financing. They buy cars at auction, fix them if they have to, then sell them. The down payment money usually covers the auction cost of the car. Then every 2 weeks, the buyers drops by with a payment. The buyer stops paying, the car is repossessed. And then it is sold again. The dealer wins in both directions; the buyer pays a lot of money in finance charges, and if it is repossessed then you don't have to buy new inventory at the auction.

Poor people with bad credit way over pay for cars both ways. One a little worse than the other.


engineering requires the application of math and science. "AI Engineering" ain't either.

It's really great just to force thinking through the problem.

Throw the document away, it doesn't have any value.

But thinking through what you are going to do, in some detail, is valuable.


For the record, the honorable governer of texas, a mr. abbott, pledges his undivided love for the Donald.

And he has publicly denounced Flock cameras and data center development in the past month.

Amazing what polling does to a politician.


All of the US protests in the last 10 years have been mild. Sure a couple of Waymos get burned up, but they are easy to capture :)

Get all those folks marching, you aren't going to get good decisions out of everyone.

But the expression of the people is hard for those in power to ignore.


some of it. most is vandalism.

my first time in Zurich. ton's of graffiti seen while leaving the airport.

if they have it, everyone does.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: