In 50 years time, who knows what will happen exactly. One thing is for sure, we will be older and there will probably lots of new scientific discoveries and technologies available. When I was born we didn’t have wireless internet and now 3.7 billion use internet through their mobile phones. Maybe we will all have self driving electronic cars, maybe we will have genetic editing services for parents planning to have children, maybe we will have more diseases due to antibiotic resistance! It’s impossible to say exactly.