The Technology Vent and Rant Thread

[mpeg2]

Originally Posted by ratinox

We will never have VR which does not cause simulation sickness because it isn't (just) the VR display systems which cause simulation sickness...

There's another issue which is going to be very hard to solve with technology: Human vision uses two mechanisms for depth perception - parallax (the different image that each eye sees) and the focus depth for the eye (conveyed via the muscular effort requred to focus at different distances). Unfortunately, for VR these disagree - the parallax is easily handled by having different views for each eye - but the focus depth is always the same - the distance from the eye to the display device is constant.

For many people, this difference causes nausea - with no good solution as yet.

[Quoth]

Originally Posted by mpeg2

There's another issue which is going to be very hard to solve with technology: Human vision uses two mechanisms for depth perception - parallax (the different image that each eye sees) and the focus depth for the eye (conveyed via the muscular effort requred to focus at different distances). Unfortunately, for VR these disagree - the parallax is easily handled by having different views for each eye - but the focus depth is always the same - the distance from the eye to the display device is constant.

For many people, this difference causes nausea - with no good solution as yet.

There are two solutions:
1. Complex variable optics that vary the apparent image distance / focus.
2. Less complex optics that involve direct laser scanning of the retina.

Neither of these is simple and they need to track the cornea / eye focusing to make the requisite Z axis distance sharp in both cases and vary the optics in system one.

It doesn't just cause nausea, but a breakdown of 3D effect for about 20% of people (the proportion who don't have perfect binocular vision and who "3D" TV doesn't work) and headaches due to eye(s) pointlessly trying to work focus.

A 3D system is merely stereoscopic if it doesn't work with one eye closed. You can easily test this in real life even indoors, because the slightest head movement reveals if the scene is a flat image or real 3D and your eyes automatically focus on what you want to study in the scene. AFAIK no affordable domestic VR works well enough even apart from the focus distance issue, which can be solved (expensively). The scene has to be re-rendered even if eyes and head are not moved if your item of interest is reading a nearby scroll, a pair of feet under the curtain at the back of the room, or the creature / vehicle descending the mountain path /road (friend or foe).

Current VR is a waste of money for most. There is some value for so called "AR" where the information is simply what would be on a vehicle windscreen (Fighter aircraft, tank, regular aircraft or road vehicle).

[Quoth]

Originally Posted by JSWolf

2027 is going to be an interesting year when phones will have easily user replaceable batteries.

Some current ones always have had, plus real SIM (sometimes 2), SD card and headphone jack. A eSIM / Virtual SIM cedes control to maker and network operator.

[ratinox]

Originally Posted by Quoth

Some current ones always have had, plus real SIM (sometimes 2), SD card and headphone jack. A eSIM / Virtual SIM cedes control to maker and network operator.

Buy an "unlocked" device and you get the same control whether you use physical SIM cards or eSIM "cards". My iPhone is unlocked (bought this way direct from Apple), always had my choice of carriers within the limits of carrier options in the US. Two eSIM slots is convenient for international travel.

The only costs to me are that I didn't get a carrier "discount" and I was never saddled with a long-term service contract.

[JSWolf]

Originally Posted by ratinox

We will never have VR which does not cause simulation sickness because it isn't (just) the VR display systems which cause simulation sickness. It's the games. I can play Beat Saber for hours (as long as my arms hold up). But I need a bucket for Half-Life: Alyx after less than 30 seconds. Same HMD (Valve Index), same host computer, two entirely different experiences because two entirely different kinds of games.

I've never had motion sickness in my life. I don't think VR would cause me any motion sickness. So when you say we, please don't as all of us do not all get motion sickness.

[JSWolf]

Originally Posted by Quoth

Some current ones always have had, plus real SIM (sometimes 2), SD card and headphone jack. A eSIM / Virtual SIM cedes control to maker and network operator.

But the major phone brands or top models do not currently have a replaceable battery. I'm hoping when batteries become replaceable in 2027 that the companies (Apple, Google, Samsung, etc.) make the same phones world-wide. I do think it would be a bad idea to just make phones for the EU and phones for the rest of the world.

[ratinox]

Originally Posted by JSWolf

I've never had motion sickness in my life. I don't think VR would cause me any motion sickness. So when you say we, please don't as all of us do not all get motion sickness.

No. I stand by my statement: "We will never have VR which does not cause simulation sickness because it isn't (just) the VR display systems which cause simulation sickness." While you, as an individual, may not suffer any problems at all, you are not the sum total of humanity. "We", all humanity, are not universally fortunate.

[JSWolf]

Originally Posted by ratinox

No. I stand by my statement: "We will never have VR which does not cause simulation sickness because it isn't (just) the VR display systems which cause simulation sickness." While you, as an individual, may not suffer any problems at all, you are not the sum total of humanity. "We", all humanity, are not universally fortunate.

You can't stand by your statement and be correct. We means all of us and as I don't get motion sickness, we is incorrect.

[ratinox]

Originally Posted by JSWolf

But the major phone brands or top models do not currently have a replaceable battery. I'm hoping when batteries become replaceable in 2027 that the companies (Apple, Google, Samsung, etc.) make the same phones world-wide. I do think it would be a bad idea to just make phones for the EU and phones for the rest of the world.

Incorrect.

While it is a relatively new service (2022-ish), Apple sell battery replacement kits for iPhone models as far back as the iPhone 12 (2020 model line). They also sell other replacement parts, and they offer inexpensive tools rentals for repairs which require more extensive work such as screen replacement.

I cannot speak to Google or Samsung as I have no interest in their offerings.

[ratinox]

Originally Posted by JSWolf

You can't stand by your statement and be correct. We means all of us and as I don't get motion sickness, we is incorrect.

We does mean all of us. While not all of us suffer from simulation sickness, some of us do. Therefore, as long as we, collectively, includes these people, "we" is correct.

[JSWolf]

Originally Posted by ratinox

Incorrect.

While it is a relatively new service (2022-ish), Apple sell battery replacement kits for iPhone models as far back as the iPhone 12 (2020 model line). They also sell other replacement parts, and they offer inexpensive tools rentals for repairs which require more extensive work such as screen replacement.

I cannot speak to Google or Samsung as I have no interest in their offerings.

The cost to buy a new battery and rent the tools is actually slightly more expensive then having Apple replace the battery. For an iPhone 12 Pro Max, it's $89 for Apple to do it. To buy the battery and rent the tools, it's $95.28. So it's cheaper for Apple to replace your battery then it is to do it yourself using Apple's battery and tools.

[JSWolf]

Originally Posted by ratinox

We does mean all of us. While not all of us suffer from simulation sickness, some of us do. Therefore, as long as we, collectively, includes these people, "we" is correct.

We is incorrect as it includes all of us. And as I am one of the all of us and I don't suffer motion sickness, we is incorrect. It will never be correct as long as I am one of your we.

[ratinox]

Originally Posted by JSWolf

We is incorrect as it includes all of us. And as I am one of the all of us and I don't suffer motion sickness, we is incorrect. It will never be correct as long as I am one of your we.

So, what you're saying is that because you (probably) don't suffer simulation sickness from VR, we already have VR systems and games which don't cause simulation sickness.

Got it.

[ratinox]

Originally Posted by JSWolf

The cost to buy a new battery and rent the tools is actually slightly more expensive then having Apple replace the battery. For an iPhone 12 Pro Max, it's $89 for Apple to do it. To buy the battery and rent the tools, it's $95.28. So it's cheaper for Apple to replace your battery then it is to do it yourself using Apple's battery and tools.

What is your point here?

[JSWolf]

Originally Posted by ratinox

So, what you're saying is that because you (probably) don't suffer simulation sickness from VR, we already have VR systems and games which don't cause simulation sickness.

Got it.

What I am saying is that you cannot use we because we incorporates people (like myself) who do not suffer motion sickness. So you have to remove we and come up and a more accurate term or word.