[racket] Liitin screencast tutorial

On Mar 7, 2011, at 2:30 AM, Jukka Tuominen wrote:

> (sorry, I took the days from wheather forecasting :)
> 
> Now, how likely is that _any_ data/program out there now will just
> work/exist after 50 years? 


Sounds like you're discussing global warming but it fits to software too. 

As the first ever director of the US weather service said recently, 
"you know bad weather predictions are for three days, why would
you trust them with N years." 

The N was large, perhaps a 100 or 50, I can't recall.