Quantum computers do have the potential to make the world better,such as .
1. Safer airplanes—Lockheed Martin plans to use its D-Wave to test jet software that is currently too complex for classical computers.
2. Discover distant planets—Quantum computers will be able to analyze the vast amount of data collected by telescopes and seek out Earth-like planets.
3. Win elections—Campaigners will comb through reams of marketing information to best exploit individual voter preferences.
4. Boost GDP—Hyper-personalized advertising, based on quantum computation, will stimulate consumer spending.
5. Detect cancer earlier—Computational models will help determine how diseases develop.
6. Help automobiles drive themselves—Google is using a quantum computer to design software that can distinguish cars from landmarks.
7. Reduce weather-related deaths—Precision forecasting will give people more time to take cover.
8. Cut back on travel time—Sophisticated analysis of traffic patterns in the air and on the ground will forestall bottlenecks and snarls.
9. Develop more effective drug—By mapping amino acids,for example, or analyzing DNA-sequencing data, doctors will discover and design superior drug-based treatments.
Since qubits can be in more than one place at once,it will make quantum computers much faster,and perhaps we can get them to use Quantum entanglement(allows information to be passed at many times faster than the speed of light).
Electric vehicles are definitely the future,just need to bring their costs down.I've noticed car shows demonize electric vehicles,with partial and distorted facts.I own an electric bike,I paid 300 dollars for it back in 2005,it still works fine,and admittedly,it has 20/KM range(since its an early model),but newer models have a much bigger range.Electric cars can go 300+ miles now. Since I use it to travel locally,it's saved me much money(no petrol,insurance or rego),and better for the environment in the long run. Anti-electric vehicle people talk about how electric vehicle batteries create more C02 emissions to create than regular cars,however,the total lifetime emissions from electric cars is much less,especially if the electric vehicle uses hydro.
Interesting,if humans wanted to,we could build a starship that could travel 10% the speed of light right now,but a big problem is the amount of money it would cost. Even then,the nearest star system is 4 light years away,so at 10% the speed of light,it would take 40 years,but we would need to use a significant amount of fuel to slow down,which means halving the speed and it would make a trip take 90 years. So it means the trip would be multigenerational, and it would mean recycling water and air(NASA said less than 90% of water and less than 50% of oxygen can be recycled with our present technology).There's a whole heap of theories as to how we could travel at near light speed or get around the speed of light barrier,and if we could travel at near light speed,time dilation means from the astronaut's perspective,it will make the trip become much shorter (what people on Earth will observe as a 9 year trip will be 3 years from the astronaut's perspective).