I've got two degrees covering ethics, statistics, computer modelling and optimisation. I'm by no means an expert in the field, but I suspect there are a lot of people in SAGE or supporting SAGE who aren't any better qualified or specialised. I understand that Neil Ferguson is a physicist by training for example.
Either way, like many people on this thread and forum, I've got enough background to understand what's being put in front of me without having to blindly trust it. I've also been around academics and doctors long enough to not automatically trust everything they say just because they have a fancy title. A huge amount of what is happening at the moment is having the label "science" attached, but isn't really backed by anything more than blind panic, gut instinct, and some very very large egos and god complexes.
It's not necessary for you believe us when we talk on here - we aren't government advisers and nobody is going to do a single thing based on what we say. Please don't assume we are idiots or pointlessly try to bait us though.