# Objects disclaimer Touch Develop docs for the @boardname@. ### Memory management on the micro-bit New user-defined object types are allocated on the heap and are ref-counted. Our ref-counting algorithm does *not* have a cycle collector. (See Wikipedia.) ### Practical consequences This means that the following script will result in an out-of-memory error.  ``` while (true) { let l = new List() l.next = l } ``` ### How to avoid this? Don't do it. It's bad.