How long your laptop or phone stays charged depends on the ability of the battery to hold lithium ions in the material of its negative electrode. Without getting to deep into the science, researchers have no managed to create nano-chains using the metal antimony to provide double the charge life.

Great, but what’s the downside? Well, it’ll be more expensive at least in the short term and it still doesn’t solve the problem of longevity.

What you see as junk may be worth something to someone else. Ask yourself, “Is this useable or easily salvageable?” If so, first stop should be a charity store. If not, then don’t throw it in the trash, instead take it to the tip.
Many electrical products contain materials that are damaging to the environment if not disposed of properly. Sometimes, old electronics are sought after by collectors—relevant if you have a Betamax

Forget the early issues with users accidentally ordering expensive items, privacy is a big issue, isn’t it? With a device that is constantly listening, how do you know whether or not what you’re saying is being recorded somewhere?
Well, sort of. What you say after you trigger the system with its “wakeword” is recorded to help improve its future speech recognition. But you can turn that off if you’re worried about privacy.