One of those meta-meta videos. It is quite impressive that a videogame of 15 years ago is still public reference.

Watching this is an excellent way to spend 10 min of your time.

It is amazing to think one person is behind this. A glimpse to a very possible future where our interactions with computers will be more natural.

The mentality and proposed business plan is also commendable. Like many idealistic situations, I am not sure how well it is catching on.

Another old video from Rogue productions. Nice idea and nice implementation!

Rogue productions film. Quite nice for a student-hobbie project.

Finally someone went into the trouble of suggesting the optimal solution.

The majority of humans are trichomats i.e. we have three different types of cells in our eyes, each sensitive to a different colour. I already knew about colour blind humans, i.e. dicrhomats. About 1/20 of males are colour blind.

Now I found out that some humans, apparently, are tetrachromats. Find out if you are one here (may not work on all computer monitors?)

Many animals are normally tetrachromats, for example birds. Then there are crazy examples like the mantis shrimps which seem to have cells sensitive to 16 different light wavelengths!

I wanted to end this with a video of interesting mantis shrimp courtship, as extremes in nature, like the peacocks' tail, are often due to sexual selection, and lead to fascinating displays, even if you are not a female of the species in question. Unfortunately I could not find something fitting, so you will have to use your imagination!