If you find yourself explaining how network address translation (NAT) works, you might know more than your SE.
If you find yourself having to explain what certain acronyms mean (like NAT), you might know more than your SE.
If you have to explain the difference between a Crossover cable and a Straight-Through cable, and why it matters that they are different, you might know more than your SE.
If they have ever muttered the phrase “Well, it’s never done that before”, you might know more than your SE.
If they admit to you that they have never before used the product themselves, you might know more than your SE.
If they truly believe that their product is “hack proof”, you might know more than your SE.
If talking to the SE at their booth has you wondering if they are the “booth babe” or not, you might know more than your SE.
If they think that a packet is something that chips come in, you might know more than your SE.
If they have never heard of a competing product for their offering, in a space where there are at least 20 competitors, you might know more than your SE.
If they think cryptography has something to do with cemeteries, you might know more than your SE.
If they think that Open Source is a skin condition, you might know more than your SE.
If they giggle when they hear the terms intrusion, breach, or IP, they could be either be 7 years old or it might just be that you know more than your SE.