Trying to understand pointers in Golang while going through Golang Tour

understanding-pointers.go

package main

import "fmt"

func main() {
	a := 200
	b := &a // Point to memory address of variable a
	fmt.Println("Initial value of variable a:", a)
	fmt.Println("b := &a, hence value of b:", b)
	fmt.Println("Value of *b:", *b) // You can access the value in memory location to whicht he value points using asterisk before the variable name
	
	// Let us increment the value in the memory to which variable b points.
	*b++ // this is called deferencing b (i.e. follow the pointer from b to a)
	fmt.Println("Value of *b after running *b++:", *b)
	
	// Since *b++ incremented the value in the memory location to which variable b points, any other variable that points to same memory location should also now have the new value same as that of "*b"
	fmt.Println("Value of variable a:", a)
	
}