> Person should have type Person, and null should have type Null. Then the compiler could make sure you didn't ever mix the two up! But I guess that ship sailed

> Person should have type Person, and null should have type Null. Then the compiler could make sure you didn't ever mix the two up! But I guess that ship sailed a while ago, and enough has been written on the matter. You can somewhat get that in C# nowadays: https://docs.microsoft.com/en-us/dotnet/csharp/nullable-references https://docs.microsoft.com/en-us/dotnet/csharp/nullable-refe...