Questions that intrigue me

This page was inspired from Patrick Collison’s Questions. Following are questions that intrigue me. They may be answered or unanswered. I may not have time to search if they are already answered, but I will update links when I find them. If you have found, then please share.

• When and how will we have a fully wireless world?
  I hate wires. I really hate them. In our current times, wires are superior to wireless technologies - headsets, ethernet, etc. But we have areas where we can we can make do with wireless - headsets, wifi, etc. A true wireless world would not need wires even for charging! No electricity poles.

• Why don’t we build roads overnight in India?
  I am talking about municipal roads that we have in cities. We always see people working on our way to work on a small strech of road. I have written on it in a related post.

• Why are we not building new cities in India?
  We are sending millions of people to existing cities, thereby making these cities expensive and difficult to sustain.

• When can computers replace/greatly assist the following professions?
  Judiciary - We know that judges have biases and can make mistakes, then why not have a computer give judgements. Law are highly logical in nature.

  Medicine - At least for diagnosis, we know that doctors can make errors, they why not have computers do the diagnosis (sorry, House :P). And there also is a shortage of doctors.

  Banking - I am amused that we have so many branches around us. Why do we need so many branches? Have people deposit and withdraw cash and cheques at ATMs. We alreadt have an automated process for approving loans (though it may not be used everywhere). We already have many such branches, but why don’t we have them in masses. I am by no means saying remove all branches. We need to move the entirety of banking operations into our mobile devices. There should not be any reason for people to go to banks.

• What should be the ideal population and area size of a country, state, county, city?
  … for it to became easily manageable, sustainable. For a country, it should be not huge enough to be difficult to manage and be burdened by its own people and not small enough to not have enough resources and by bullied by larger nations.