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> most tasks we achieve via computers and phones do not strictly require a screen. X (doubt). There are unfortunately only 5 senses that our brains can interac

> most tasks we achieve via computers and phones do not strictly require a screen. X (doubt). There are unfortunately only 5 senses that our brains can interact with the outside world, and visual ways are the most information dense and the easiest to utilize. The screen isn't going away anytime soon. Projector to me are same as screen - they've been around for as long too. Though I do look forward to direct computer-brain interface, like introducing a 6th sense.

TylerE 3y ago
The 5 senses thing is long-disproven rubbish. Humans have hundreds of senses.
- Aperocky 3y ago
  Would love to hear what the rest of those are, please be specific.
  - TylerE 3y ago
    Well, for instance, what is commonly referred to as "touch" is actually a whole bundle of senses. There's the actual sensation of pressure, but also texture, temperature, surface finish, the physical position of your various body parts, your sense of balance, etc etc.
    - paledot 3y ago
      Okay, but unless you're suggesting a computer interface based on proprioception, I'm not sure that that's relevant to the topic at hand. I too would be interested to see an enumerated list of over 100 senses.
      - TylerE 3y ago
        Isn't that what all the various VR glove type controllers are?
        albedoa 3y ago
        Can't help but notice that you again didn't answer the question. I will third the request.
        RugnirViking 3y ago
        not the parent but I posted an honest attempt at such a list on the sister comment if you're interested :)
        TylerE 3y ago
        Rather pushy demand for well after the East Coast has gone to sleep.
        chagen 3y ago
        Ok, 100 senses could be too many for you to type. Maybe could you list 20 human senses?
        deleted 3y ago
        [deleted]
        RugnirViking 3y ago
        I'm no biology expert but had to study some of this for my robotics degree not so long ago. "Sight" split into rods for brightness sensitivity, and cones, each of which is deicated to one out of red, green, and blue. green is wider gamut of color than the others because there is a lot of green in nature. These sensors are fully independant of each other for the most part, although there is minor overlap between cones which is what we call other colors (yellow etc) "Taste" Again split into different specialised papillae sensors. I dont remember so well, but its something like foliate for sour sensing, fungiform for salty, and vallate for bitter/poison. There is also sweet I dont remember the name, and some argue for umami "Touch" There are an ungodly number of very distinct senses that go into touch. From more abstract ones like pain, heat/cold, moisture (not evenly distributed around body, for example have to touch things to lips to distinguish cold from wet), proprioception for joints (arguably an independant sense for each joint, or at least each "kind" of joint, because the biological mechanism is different for ball joints to saddle joints etc as well as specialised proprioception for eyeballs, tongue etc) Then in actual touch touch there is Ruffini corpuscles sensing skin stretching and slippage of objects past the skin Merkel discs, which senses pressure applied to the skin and low frequency vibration Meissner's corpuscles, which sense vibrations in middle range. They are very sensitive and allow very slight sensing of tiny impulses such as picking up an insect's wing Pacinian corpuscle sense extremely fast vibration which among other things allow the distinction between "rough" and "smooth" surfaces (by mechanical movement causing vibration) There are also free nerve endings sensing stuff like itching and bruising. Hair foillicles also sense movement and stretching of the hair they are attached too, which provides more touch data. Incidentally this mechanism is also used for balance and hearing via really complicated interactions of tiny hairs in the ear. "Smell" Smell is fiendishly complex, it actually is more akin to the way antibodies in the body are made in the sense it consists of thousands (and millions) of specialised sensors made to "fit" and attach to individual compounds, so there are almost limitless individual senses of smell There is also a whole lot of internal sensor data for things like breathing (you know when you are short of breath), digestion you know when you are full, or when you are craving one of a number of things sweet salty etc), bladder control. This is mostly off the top of my head and i'm certain i'm misremembering some of the subtlties and a whole bunch more senses both obscure and immediately recognisable ones to any owner of a human body
    - Aperocky 3y ago
      I mean you can separate a screen out into a bunch of pixels as well, or specifically blue, red, green pixels. Even on the vision front, we have rods and cones that works differently to generate ONE vision. This is entirely semantics.
  - sassifrass 3y ago
    Not sure there are hundreds, but just to add one example beyond “the five”: Proprioception [1] [1] https://en.wikipedia.org/wiki/Proprioception https://en.wikipedia.org/wiki/Proprioception
gizajob 3y ago
Projectors really love flat, non-moving surfaces. Will be interesting to see how they've coped with a wiggly hand wiggling around or in motion.
- thebigman433 3y ago
  I highly doubt this thing is even usable outdoors. You would need pretty insane brightness levels for this to work in the sunlight. Companies have been trying to make projects with touch input for years, and nobody has gotten close to anything resembling a consumer product, I highly doubt they achieved it here
  - gizajob 3y ago
    I agree, even though I'll reserve judgement until trying it. But it remains that limitations in power are unavoidable, and projecting a laser image onto a hand in daylight is going to use an awful lot of juice, particularly given the projector is so tiny I've no idea how this can be done so it's functional, nevermind "insanely great". Same goes for their claim that the speakers inside this tiny device are worthy of getting sound to the ears while skateboarding outdoors. You can have all the Head Related Transfer Functions in the world but again, you need speakers and amplifiers on the order of several watts to get the sound up to the ears. My iPhone Pro Max sounds great and loud in a quiet room, but take it onto the street to play music, it's barely audible. Also not sure how the device will know what kind of HRTF to use given its placement is going to vary so much.

TylerE 3y ago

The 5 senses thing is long-disproven rubbish. Humans have hundreds of senses.

Aperocky 3y ago
Would love to hear what the rest of those are, please be specific.
- TylerE 3y ago
  Well, for instance, what is commonly referred to as "touch" is actually a whole bundle of senses. There's the actual sensation of pressure, but also texture, temperature, surface finish, the physical position of your various body parts, your sense of balance, etc etc.
  - paledot 3y ago
    Okay, but unless you're suggesting a computer interface based on proprioception, I'm not sure that that's relevant to the topic at hand. I too would be interested to see an enumerated list of over 100 senses.
    - TylerE 3y ago
      Isn't that what all the various VR glove type controllers are?
      - albedoa 3y ago
        Can't help but notice that you again didn't answer the question. I will third the request.
        RugnirViking 3y ago
        not the parent but I posted an honest attempt at such a list on the sister comment if you're interested :)
        TylerE 3y ago
        Rather pushy demand for well after the East Coast has gone to sleep.
      - chagen 3y ago
        Ok, 100 senses could be too many for you to type. Maybe could you list 20 human senses?
        deleted 3y ago
        [deleted]
        RugnirViking 3y ago
        I'm no biology expert but had to study some of this for my robotics degree not so long ago. "Sight" split into rods for brightness sensitivity, and cones, each of which is deicated to one out of red, green, and blue. green is wider gamut of color than the others because there is a lot of green in nature. These sensors are fully independant of each other for the most part, although there is minor overlap between cones which is what we call other colors (yellow etc) "Taste" Again split into different specialised papillae sensors. I dont remember so well, but its something like foliate for sour sensing, fungiform for salty, and vallate for bitter/poison. There is also sweet I dont remember the name, and some argue for umami "Touch" There are an ungodly number of very distinct senses that go into touch. From more abstract ones like pain, heat/cold, moisture (not evenly distributed around body, for example have to touch things to lips to distinguish cold from wet), proprioception for joints (arguably an independant sense for each joint, or at least each "kind" of joint, because the biological mechanism is different for ball joints to saddle joints etc as well as specialised proprioception for eyeballs, tongue etc) Then in actual touch touch there is Ruffini corpuscles sensing skin stretching and slippage of objects past the skin Merkel discs, which senses pressure applied to the skin and low frequency vibration Meissner's corpuscles, which sense vibrations in middle range. They are very sensitive and allow very slight sensing of tiny impulses such as picking up an insect's wing Pacinian corpuscle sense extremely fast vibration which among other things allow the distinction between "rough" and "smooth" surfaces (by mechanical movement causing vibration) There are also free nerve endings sensing stuff like itching and bruising. Hair foillicles also sense movement and stretching of the hair they are attached too, which provides more touch data. Incidentally this mechanism is also used for balance and hearing via really complicated interactions of tiny hairs in the ear. "Smell" Smell is fiendishly complex, it actually is more akin to the way antibodies in the body are made in the sense it consists of thousands (and millions) of specialised sensors made to "fit" and attach to individual compounds, so there are almost limitless individual senses of smell There is also a whole lot of internal sensor data for things like breathing (you know when you are short of breath), digestion you know when you are full, or when you are craving one of a number of things sweet salty etc), bladder control. This is mostly off the top of my head and i'm certain i'm misremembering some of the subtlties and a whole bunch more senses both obscure and immediately recognisable ones to any owner of a human body
  - Aperocky 3y ago
    I mean you can separate a screen out into a bunch of pixels as well, or specifically blue, red, green pixels. Even on the vision front, we have rods and cones that works differently to generate ONE vision. This is entirely semantics.
- sassifrass 3y ago
  Not sure there are hundreds, but just to add one example beyond “the five”: Proprioception [1] [1] https://en.wikipedia.org/wiki/Proprioception https://en.wikipedia.org/wiki/Proprioception

gizajob 3y ago

Projectors really love flat, non-moving surfaces. Will be interesting to see how they've coped with a wiggly hand wiggling around or in motion.

thebigman433 3y ago
I highly doubt this thing is even usable outdoors. You would need pretty insane brightness levels for this to work in the sunlight. Companies have been trying to make projects with touch input for years, and nobody has gotten close to anything resembling a consumer product, I highly doubt they achieved it here
- gizajob 3y ago
  I agree, even though I'll reserve judgement until trying it. But it remains that limitations in power are unavoidable, and projecting a laser image onto a hand in daylight is going to use an awful lot of juice, particularly given the projector is so tiny I've no idea how this can be done so it's functional, nevermind "insanely great". Same goes for their claim that the speakers inside this tiny device are worthy of getting sound to the ears while skateboarding outdoors. You can have all the Head Related Transfer Functions in the world but again, you need speakers and amplifiers on the order of several watts to get the sound up to the ears. My iPhone Pro Max sounds great and loud in a quiet room, but take it onto the street to play music, it's barely audible. Also not sure how the device will know what kind of HRTF to use given its placement is going to vary so much.