As an expert witness (in IT forensics) I can confirm that taking any expert knowledge and transferring that to the jury is becoming a bigger and bigger challenge as life becomes more complex but the jury system remains. When training other potential experts, I tell them about my mum who has never used a computer and does not even have a cashpoint card. She can be called for jury duty at any time. She would be as lost in the World of gigabytes, IP addresses, spoofing etc as she would be in the World of fighter jet aerobatics. When giving evidence, I always imagine that my mum is in the jury. We can't assume they know anything. The concept of "twelve good men and true" is a nice and noble one but IMHO, it really struggles in our modern, complex environment.Change is required.