Wouldn't the center be the Big Bang and the 3D Universe at the current time (if Relativity lets me write about a current time) be the 3D surface of the 4D sphere (or spheroid) that the Big Bang is creating by keeping to expand?
I think "the big bang happened everywhere" is more correct than your take. The big bang dlrefers to the early period of a spacetime with an initial moment. At that initial moment the distance between all points is zero. But there still are a full 3d set of locations. Starting at this initial moment, distances between points grow quickly. Thats the bang.
It is true that in GR you can't speak of "before" the big bang, but the big bang itself is a feature within time. It happens at the first moments of time and everywhere in space. And if you replace the initial singularity with a dense quantum foam and thus are able to extend time into the past in some quantum sense, the big bang doesn't go away.
Which would undercut practically all of modern physics. Really fundamental conservation laws like momentum and energy rely on the universe being equal in all directions. If it has a central axis, that does not hold.
So if that holds, it's potentially a major pointer to the very origins of the universe itself. But it's also one of those extraordinary claims that require extraordinary proof. I strongly doubt that this will stand up to scrutiny -- though I'll certainly be pleased if it turns out be true, because that will be a major advance in our understanding.
If everything started from a singularity that had a axiomatically uniform rotation, you might not be able to assess the center "axis" based from inside spacetime itself
This seems to be a variation of Mach's principle, which is one of the closest things to philosophy in physics!
To say that the universe rotates usually implies that it rotates with respect to something external. If we limit ourselves to the visible universe, this would mean that mass outside our light cones can actually influence us, by means of building the frame of reference that allows us to say that the universe rotates!
You don't need any external reference points to know that you're rotating. You could detect it by the apparent centrifugal force: objects in your own frame of reference don't move in straight lines.
It would imply that there exist privileged reference points within the universe, and that would be a major change to physics. I can't predict all of the consequences of that, and they might include some kind of external frame of reference. But that doesn't necessarily follow.
There is. The center of the observable universe is earth. Every alien civilization will see themselves at the center of thier observable universe. And each will observe the same rotation in faraway objects. Relativity makes things strange.
If you have two stars orbiting each other, they orbit a centre of gravity and they will probably both be rotating in the same direction as their orbits.
Is that a meaningful centre for anything else though?
We fail at teaching a means with no end. Help them find an interesting end and they will achieve it by any means necessary.
Our job as parents is to expose our kids to a wide variety of disciplines so that they can find their interest.
I read that Elon Musk runs his private school this way. The kids narrow their focus quite early on. But of course there's tons of depth to study. So they actually get somewhere.
I was paying experts in a wide variety of industries for interviews in which I meticulously documented and organized the comprehensive role of the human in that line of work. I thought I was building a treasure chest, but it turns out nobody wants that shit.
Anyways, just a story on small-time closed data for reference.
As a parent, what are the kind of things you wish were easier? And potentially areas that tech could help solve? We are adding more features so would love to understand what all we could add to make parents lives easier.
This seems like a common misunderstanding. Lots of SaaS have cheaper annual pricing. IIUC Adobe lets you get the cheaper annual pricing and then pay for it on a monthly basis. If you cancel early, you have to pay out the rest of your annual plan. This is no different than if you'd paid for it up front, and prevents people from signing up for the annual plan to get a cheaper monthly price and then canceling early.
My last interaction with Adobe is a few years back, what I recall is:
I got tricked into the "pay monthly for annual subscription" (it was probably written there, just hidden very good). I then cancelled my subscription and instead of telling me "it runs anyway another 10 months", they let me cancel early, charging me a cancellation fee (which I only realized after it was too late) which was _higher_ than the remaining months.
Now I will never ever buy something from Adobe again.
There's seem to be a lot of reports for Adobe continuing to charge a credit card 12-18 months after confirmed cancellation and no recourse or anyone to access for help because the account is closed.
It’s the dumbest argument ever. Find a perpetual software license or 12 month subscription that allows for cancellation for convenience.
I get why some folks are angry, it was easier to pirate Adobe back in the day. If people don’t want to pay, there’s all sorts of competition in different segments of the market as well as open source.
The problem is that the 12 month contract is (a) pulled out of their ass and not reflective of the real costs for either party, and (b) until very recently not even disclosed (even in recent months, there are plenty of reports of cancellation fees from people with screenshots of having correctly chosen the monthly version). The very highest cancellation fee that makes sense is the delta between the monthly rate and what the annual rate projected on to the number of months of payment would be. If an annual subscription is cheaper because of risk or the time value of money, even that delta is a vast overestimate of Adobe's damages, and the fact that they're asking for 10x-20x is a blatant abuse of power.
> Find a perpetual software license or 12 month subscription that allows for cancellation for convenience.
All of them with Canadian customers, for example. It's a product with incremental costs and incremental value, so cancelling it (neither paying incremental costs nor forcing the service provider to do the same) makes perfect sense.
> It was easier to pirate back in the day
That's not the problem at all. Gimp is way better than the piratable photoshop ever was. It's not useful to ad hominem people who don't want to be abused.
I don't know about Canada, but here in France many things come as a long-term contract with monthly payments and cancelation fees. Most common which come to mind are mobile phone plans and ISP subscriptions.
Many companies still have 12 or 24 months plans, and you're on the hook for some form of penalty if you cancel before the term. And no, I'm not talking about buying a plan-subsidized phone, even "naked" plans have this.
Since some years ago, companies have started offering monthly-only plans, so you can cancel anytime. But, for some reason, there still are cancelation fees, which are fixed. What's funny, is that they also usually offer rebates if you switch providers, which usually cover those fees.
I'm not saying this is a good thing, but, at least where I live, the Adobe scheme is fairly common.
No way. I have no problem paying. I don't even mind the price. When I signed up last time I chose the monthly option because thats what I was used to for nearly every subscription. I didn't do the math to notice it matched the price of the annual subscription and not once was the cancellation fee mentioned. I was totally caught off guard by the fee and was lucky it was close
to the end of the contract.
It's the same shit internet providers used to do in the US that thankfully they can no longer do. I cannot understand anyone defending Adobe on this if they actually used that plan the way they explained it. Maybe it's better now,
but it absolutely was shady as hell a few years ago.
It isn't a monthly subscription. Its an annual subscription broken up into 12 payments.
I understand that there was a lawsuit and all that, I read through part of the Adobe thread from the other day. I am not defending Adobe in that regard.
If you only want the software for 2-3 months, the month-to-month agreement is available, but if you have a longer-term need for the software you get a discount for committing to a year's worth. If you take the discount, pay the cheaper monthly cost and then cancel before the end of the commitment, a penalty seems fair.
Again I am not defending whatever obfuscation of terms that led to the oft-mentioned lawsuit, just that there seems to be some confusion about monthly and annual commitments.
I had no idea a monthly subscription was even available. You have to ask the website in my region for “more details and more plans” to even see the monthly subscription.
Also because they offer “a discount” on the first year here, it’s 38€ month/yearly plan or 104€ a month/monthly.
I don’t know. If you’re going to allow Adobe to buy its competitors and monopolise entire regions of our economy, this seems a bit shit.
Yes, it is really up to Adobe's marketing team to make sure that customers are not misunderstanding the plan. If the misunderstanding continues, then the government might end up stepping in.
reply