# Theories of Everything

APL: everything is a matrix

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### Theories of Everything

APL: everything is a matrix

LISP: everything is a list

Xanadu: everything is a fat pointer to constant or append-only data

SQL: everything is a row

Forth: everything is a word

UNIX: everything is an FD (except ioctl, network sockets, shell procedures…)

C: everything is a mutable unbounded byte array (except preprocessor macros)

Smalltalk: everything is an object

PROLOG: everything is a predicate (except atoms and lists)

Objective C and C++: everything is an object (except the things that already
existed in C)

Plan9: everything is a file (no, really)

Java: everything is an object (except primitive types and methods and…)

AJAX/DHTML: everything is a DOM node

By [John Ohno](https://medium.com/@enkiv2) on [February 21,
2020](https://medium.com/p/30f2a0951cca).

[Canonical link](https://medium.com/@enkiv2/theories-of-
everything-30f2a0951cca)

Exported from [Medium](https://medium.com) on September 18, 2020.