Question: What are the easiest and hardest fields in engineering?

Chris Hackett answered on 13 Jun 2016:

there is no easy or hard fields, it all depends on how deep into a field you wish to study. All fields will appear hard when you first encounter them but after you study you will find them easy and will want to specialize into something harder.
All the fields are linked in some way too, they are not completely separate. A satellite engineer would involve electrical, electronic, mechanical, computer, thermal engineering and many more.