Questions

How did the central banks of the EU member countries form the ECB? Why are their still national central banks in the EU?

If you traveled back in time and wanted to become a great general what items excluding weaponry would give you the advantage over Julius Ceasar or Napoleon?

How much information will employers be able to gather on prospective employees in 100 years? Will legislation restrict information gathering? (What if an otherwise unimpeachable new hire would be determined to have a 90% chance of become an alcoholic after 5 years on the job, could you discriminated against him?)