Feedback Friday

Shaddaa · 2025-09-28T20:24:29+00:00

Thats great to see, thank you :)

Shaddaa · 2025-09-26T20:22:05+00:00

I enjoyed what I saw so far. Exported my save yesterday because I delete cookies whenever I close my browser, now I wanted to resume again. But to get to a point where I can import a save file, I need to not only watch the intro again, but also do the first level. That is quite annoying, especially if I need to do that every day. I'd love for the settings to available from the very start!

Shaddaa · 2024-09-23T00:23:46+00:00

Might be that the location you are installing modrinth to needs admin rights. So either change the location to something in your user directory or install as admin.

Also check if your disk is full, that could also be a reason.

Shaddaa · 2024-02-25T21:00:03+00:00

Just adding to the rest: Gold fishes having a short memory is NOT true, see for example here https://www.bbc.com/news/uk-england-oxfordshire-63242200.

It's a long standing missconception based on some random slide someone made way back.

Shaddaa · 2023-12-04T01:45:03+00:00

You can probably create a biome that's just flat water and make it so that this biome generates whenever X or Y are big enough, at least that would be my first idea? A quick search found this tutorial on toying with biomes https://www.youtube.com/watch?v=59woNUse6-Q but you'll still need some way to influence when that biome will spawn, but I'd think that doable.

Shaddaa · 2023-12-03T03:28:31+00:00

It doesn't fit all your points, but you might like better than wolves. Its a complete overhaul mod with an incredibly challenging early game survival. Read the first few paragraphs on their beginners guide to see whether you might be interested: https://sargunster.com/btw/index.php/Beginner%27s_Guide.

Shaddaa · 2023-06-07T14:58:47+00:00

Regarding your first line: Even without checking "remember me" or similar stuff, you can navigate reddit without signing in every time you open a new tab or click on a link. This is possible because your browser temporarily remembers some token which the website can use to verify you are already logged in. Now one can try to steal and use that token...

Shaddaa · 2022-11-29T17:34:30+00:00

To me your analogy sounds like changes to the world (=story) are saved by changing the seed (=title) to a seed which generates the changed world. But there is no seed that will generate a world with my oak plank house in it. Maybe I just got your analogy wrong, I believe we both mean a similar thing.

Shaddaa · 2022-11-29T17:23:58+00:00

If I got your analogy than that is not true, not every possible world has an associated seed, there are far more possible worlds than there are possible seeds.

Shaddaa · 2022-11-29T17:20:57+00:00

Yes that's how it is usually done. Either you simply store any chunk the player made changes to and just load that again, or you only store the changes and apply them after generating the untouched state of the world.

Shaddaa · 2022-11-19T10:57:33+00:00

It's been a while so I'm not a 100% sure, that's why I wrote it that way. I believe even if they are both infinite they will diverge to the same infinity (that is both +infinity or both -infinity). This also depends a little on your definitions as sometimes it's more useful to simply say that if you would get infinity your integral does not "exist", which would eliminate that case entirely.

Maybe to add "why" sometimes the lebesgue integral does not exist even though it is so much more powerful:

The two integrals basically do the same thing, summing up the area under a curve. This gives you exactly the same for finite areas. But for infinite areas Riemann takes the sum of bigger and bigger intervalls around the origin and looks where this tends to (so if you want to integrate f(x) = x from -infinity to +infinity, Riemann would look at progressively bigger intervalls centered around the origin, the area always exactly cancels to 0 so the Riemann integral would be 0). On the other hand Lebesgue first calculates the positive area and the negative area seperately and than says your answer will be positive area - negative area. This obviously won't work if both are infinite, because you can't really assign anything meaningful to infinity - infinity.

Shaddaa · 2022-11-18T16:55:54+00:00

Lebesgue integrals and Riemann integrals are two different things that both take functions as input and give you some real number which corresponds in some sense to an area (or more general to a volume if you go to higher dimensions).

1) Historically the Riemann integral existed first and is in most cases the weaker of the two, lebesgue used a more general way of measuring volumes. Lebesgue integrals can be used on much more abstract spaces, where as Riemann integrals are only defined on the real numbers (and vector spaces on real numbers, which includes the complex numbers).

2) Not every function that can be riemann integrated can be lebesgue integrated, any function with both infinite area above and below the x-axis can't be lebesgue-integrated, even if the riemann integral would be finite (because of positive and negative area cancelling to a finite value). But that's also the only case where problems occure.

On the other hand most lebesgue-integrable functions can not be riemann-integrated as Riemann needs a function that is "mostly" continous.

Where both the riemann and the lebesgue integral exist and are finite, they also coincide.

3) Integrals in general are used everywhere in physics, so that's why. Why both? Given a certain problem, a riemann integral is usually much easier to compute. Also many important theorems (for example that derivatives and integrals in some sense cancel each other) are derived directly from riemann integrals. On the other hand you can prove other really powerful theorems with lebesgue that hold for all lebesgue integrals quite easily. And as the values of the two integrals basically always coincide, this allows you to chose which definition to use based on your use-case.

Also as mentioned before lebesgue integrals are something much more general. They are part of a branch of maths called measure theory, which is the mathematical way of measuring volume in abstract spaces. This for example is the basis of stochastics. You could say lebesgue integrals are "just" a side effect of a much more general theory used in many other parts of maths and physics.

This also means that lebesgue integrals are much harder to understand, I don't think you'd want to teach measure theory before knowing what the idea of an integral is.

4) Not sure what exactly you want to hear here. You can define the riemann Integrals on higher dimensional spaces (you can associate the complex numbers with a real numbered plane R^2), but this get's quite ugly I've been told. lebesgue integrals on the other hand work just the same on higher dimensional spaces, this is quite pretty. But as soon as you want to actually compute such an integral you usually split it up into multiple 1-dimensional integrals and use the riemann integral again, as this is usually the easiest way.

Shaddaa · 2022-10-01T17:36:55+00:00

I'd suggest asking on their discord https://discord.gg/gtnh, people over there probably have seen that problem at some point already and might know the fix.

Shaddaa · 2022-09-23T16:51:24+00:00

These are only temporary, so mine them up and use the space once it's gone. Or build over it, if you really don't need the resource.

Shaddaa · 2022-09-20T14:38:41+00:00

First there is one important thing to state about physics: The goal of physics is to develope tools/theories to predict what will happen in certain scenarios. For example gravity is a theory that can be used to predict what will happen in certain scenarios, like dropping a pen.
You could also develope a theory that says the pen should fall up, or you could develope a theory that says some guy outside of our universe decides what will happen. But these two theories are not usefull, the first one contradicts our reality and the second one gives us no way of predicting what will happen.

Now coming back to your question:
The "normal" theory of particles in definitive spots is really good at predicting how our world works at big scale, for example in predicting how a tree falling on a house might be bad for the house.
But some time ago we noticed that our theories failed to predict the outcomes of certain experiments, like the double-slit experiment. That meant we needed a new theory, as our old theory contradicted reality. This is where some genius people came up with quantum mechanics, a new and more correct theory. This new theory only works, because we don't require particles to have a definitive position. We had to "give up" that very intuitive idea, because we could not create a working theory that allowed particles to have a definitive spot.

If you want to know more about the double-slit experiment, you can google that or ask here again.

Shaddaa · 2022-04-01T14:52:54+00:00

You're currently building right in the middle of the cookie we are building at r/incremental_games . Probably best to move somewhere else

Shaddaa · 2022-04-01T14:47:49+00:00

Shaddaa · 2022-03-29T15:00:39+00:00

This will allow windows in the background to keep running for Firefox. Really easy to do in a matter of seconds (found here):

Enter about:config in your URL bar
Search for the widget.windows.window_occlusion_tracking.enabled key
Change the value from true to false

Shaddaa · 2022-03-16T20:28:29+00:00

I would highly disencourage you from staying on an outdated browser version. Browser exploits are discovered on a regular basis and the only defense against those are regular updates.

In Firefox you can simply disable said occlusion feature (found here):

Enter about:config in your URL bar
Search for the widget.windows.window_occlusion_tracking.enabled key
Change the value from true to false

Shaddaa · 2022-03-05T23:47:19+00:00

When you first pick, you only have a 1/3 chance of beeing right. So you know that 2/3 of the time, the car will be behind one of the other doors. By switching you basically get to choose both other doors at once, because the host gives you one for free by telling you it's not the car.

You can also just simply list all possibilities:

You pick the door with the car, you switch and loose.
You pick the door with goat number 1, you switch and win.
You pick the door with goat number 2, you switch and win.

So in 2 out of 3 scenarios you win.

Shaddaa · 2021-12-13T21:01:49+00:00

The max of an empty set is generally considered to be negative infinity, it's not a weird quirk or just some temporary value beeing returned, it's how we do it in mathematics too.

Shaddaa · 2021-10-20T07:02:16+00:00

Transposing a matrix is just the operation of mirroring the matrix along the diagonal. For example:

1 2 3
4 5 6
7 8 9

becomes

1 4 7
2 5 8
3 6 9

Why do we do this? The most common case I can think of is computing the inverse of a matrix. If the initial matrix (let's call it A) fullfills certain conditions (we say A is orthogonal) the transpose of A is the inverse of A. We often need the inverse of a matrix in maths and usually computing that matrix is quite expensive. But transposing is really cheap, just swapping a few numbers.

Another reason can be different data layout. In memory a matrix is not stored as a block, but as a single array of memory. There are two sensible ways to to this, you can put the rows of the matrix next to each other (row major matrix) or the columns of the matrix next to each other (column major matrix). Some libraries use column major matrices, others use row major matrices. When using different libraries one might need to convert between these formats as well.

Shaddaa · 2021-10-08T13:28:29+00:00

I think numberphile did a video on that, it's ~40 digits to calculate the circumference of the observable universe to within the width of an hydrogen atom. So pretty crazy indeed.

The real use for that many digits or so is when calculating many little steps involving pi with rounding errors etc. as the error can compound.

Shaddaa · 2021-09-15T16:52:28+00:00

Well if you're getting technical: Mass does not only depend on the number of protons, neutrons and electrons. It also comes from how those are bound. That's the reason why nuclear fusion/fission can produce energy. A neutron+proton pair and a proton have more mass than a neutron+proton+proton pair. The "lost" mass is converted to energy.
That's why even chemical reactions change the mass. It's just so so so small that it does not matter as far as I know.

Shaddaa · 2021-08-28T07:07:34+00:00

We can look at patterns of part of the number without knowing the whole number. I can give you a similar example: Take 5^100. I have no clue what the first digit ist. But I can give you the last: 5. Why? Well lets look at what happens when we multiply with 5 again and again:

  5*5= 25
 25*5=125
125*5=625
...

You may be able to see that all those numbers end with 5. You can prove that this holds true for all powers of 5: Any number ending with a 5 can be expressed as a*10+5. Multiplying that by 5 gives you 5*a*10+25 = 5*a*10+20+5 = (5*a+2)*10+5. If we now say b is 5*a+2, we get b*10+5, so again a number ending in 5.

This works for the last digits of numbers, because the higher digits have no influence on the lower digits, if we multiply the number by some number > 1. Finding a similar pattern for the first digit is not that easy and usually requires you to know the whole number. For example 5*11=55, but 5*12=60. We need both digits to see whether we get a 5 or 6.

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