Improve answer 1

Author: lydiahallie

README.md

@@ -33,7 +33,7 @@ sayHi();
 
 Within the function, we first declare the `name` variable with the `var` keyword. This means that the variable gets hoisted (memory space is set up during the creation phase) with the default value of `undefined`, until we actually get to the line where we define the variable. We haven't defined the variable yet on the line where we try to log the `name` variable, so it still holds the value of `undefined`.
 
-Variables with the `let` keyword (and `const`) don't get hoisted. They are not accessible before the line we declare them. This means that there is no reference yet to the variable `age`, yet we try to access it. JavaScript throws a `ReferenceError`.
+Variables with the `let` keyword (and `const`) are hoisted, but unlike `var`, don't get <i>initialized</i>. They are not accessible before the line we declare (initialize) them. This is called the "temporal dead zone". When we try to access the variables before they are declared, JavaScript throws a `ReferenceError`.
 
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