Conditional clause

We’re sometimes unable to recognise people we’ve met, let alone recall their name. Most people take this as a sign that they have a bad memory. But this is probably not the case. Names can be a particularly hard thing to remember. For one thing, they are abstract and unconnected to the person; while Mr. Baker used to be a baker, today his name is not related to his profession. For another, we usually hear names only once when a person is introduced to us, and often we don’t even hear the name properly, but smile and shake hands anyway. Something commonplace, like a name, which is only encountered once, is unlikely to be stored as a strong memory. Finally, the worst possible scenario is being introduced to a large group of people at once. Any more than seven people at the same time and your short-term memory will be overloaded. Then there’s almost no chance you’ll remember them.

Someone explained the structure about the sentence in bold

Any more than seven people at the same time and your short-term memory will be overloaded.

= (If you are introduced to) any more than seven people at the same time, your short-term memory will be overloaded

The explanation above is possible? If so, how is that possible?