I totally get what you mean about the skepticism, and I really didn't aim to sound like a spoilsport.
However, any would-be (I'm talking zero experience) programmer that looks to this for inspiration is going to be demotivated by not being able to come anywhere near this progress. Because it's not possible. It's deceiving. The website presents itself as a resume or a portfolio, and in a way it does feel like it's selling something: herself.
Yes Conway's Game of Life, Pixel Paint, etc. can be made in surprisingly limited time and code, but not by a novice programmer. We're talking about having to grasp variables, lists, function calls - basic stuff - that given no prior knowledge may take weeks alone.
This is someone with a solid understanding of programming and who has borrowed (very skillfully I'll say) from tutorials and examples - very good skills to have, but separate from her claim.