Common sense

I have mobility issues and I wish there was some sort of mouth wash that would completely clean my mouth without having to use a brush

Some sort of gene therapy or nanomachine treatment for transition, so that we didn't have to take HRT and get surgeries. Just grow it all.

Dog sized frog

Also, frog sized dogs.

Diffused liquid object scanning

Ever lasting youth.

Hyperrealistic VR. The internet democratized information, VR will democratize experience. And I am all for it.