This window gives you privacy by using falling sand for blinds

A train in Singapore , gets window blurred when it passes through residential complexes

If you have kids, please don't think about getting this 😂 You will have a sandy beach in your house 😂

This window turns into a balcony in few seconds and can almost instantly change the level of interaction with the external spaces.

Just a lil condensation will ruin it. I hope it’s fully sealed

That's not really practical for a Window🤣

How am I suppose to flip my entire house upside down?

Invisibility cloak that could hide tanks and troops looks closer to reality. Harry Potter's 'invisibility cloak' appears closer to reality as Canadian camouflage manufacturer Hyperstealth Biotechnology has applied for patents on its 'Quantum Stealth' material

Man just use curtains

So you wouldn’t be able to have a bug screen plus the whole window would probably leak a TON of air. Doesn’t seem practical.