What if everyone's name was their username, everyones had to be different.  Would some people be called GB70David456? What if you could use birth username across all services, such as your Facebook ID, Twitter name, email and mobile contact? Before when we had the world wide web.  What else used the internet?

What if the earth really was flat? Are pilots, astronauts and scientists all keeping the secret?  Could they really be wrong? What is on the other side? Before WHEN we had postcodes, how did they start and where.  What else are they used for today and are they about to be replaced?

What IF 100 people could vote for someone to be legally murdered? Would it have stopped Hitler before he came to power? Would bosses feel compelled to be nicer? Who might you vote for? Before WHEN discusses motorways? When did they start, how long would journey times take without them? What exactly is a motorway?

This episode asks, what if the earth stopped spinning.  How would we survive if days where as long as a year, or half the world was permanently day?  Is the earth going to stop spinning already? Before when we had batteries discusses how batteries came to be.  What devices couldn't we invented without batteries.  Will replaceable batteries be around for much longer?  And what came first, batteries or electricity?

What if we had frequent power cuts?  Why could they happen? Which places have regular power cuts today? How would they impact society? What did we do before 999? How did you call the fire brigade? Why 999? Why was it invented?

This episode asks, what if we recieved alien contact.  What is the world plan? Do we even have one?  If they don't know we are here, should we respond and how.  Have we tried to send a message? Before when we had barcodes discusses how supermarkets worked, and how barcodes allowed them to grow.  What is next for the humble barcode?

What if we let all of the tyres down? What if we received an alien communication or what if frequent power cuts became normal.  Would the world be prepared and how? What if we had never invented the wheel or what if the titanic hadn’t sunk.  How would either have shaped transport today. How did we cope back before when we had broadband, and not just dial-up for those who remember that.