zlacker

>>makira+(OP)
Lookup tables with precalculated things for the win!

In fact I don’t think we would need processors anymore if we were centrally storing all of the operations ever done in our processors.

Now fast retrieval is another problem for another thread.

>>whatev+ti
Reminds me of when I started working on storage systems as a young man and once suggested pre-computing every 4KB block once and just using pointers to the correct block as data is written, until someone pointed out that the number of unique 4KB blocks (2^32768) far exceeds the number of atoms in the universe.

>>crmd+Jz
Reminds me of when I imagined brute-forcing every possible small picture as simply 256 shades of gray for each pixel x (640 x 480 = 307200 pixels) = 78 million possible pictures.

Actually I don't have any intuition for why that's wrong, except that if we catenate the rows into one long row then the picture can be considered as a number 307200 digits long in base 256, and then I see that it could represent 256^307200 possible different values. Which is a lot: https://www.wolframalpha.com/input?i=256%5E307200

>>jodrel+DJ
i think at some point you should have realized that there are obviously more than 78 million possible greyscale 640x480 pictures. theres a lot of intuitive examples but just think of this:

https://images.lsnglobal.com/ZFSJiK61WTql9okXV1N5XyGtCEc=/fi...

if there were only 78 million possible pictures, how could that portrait be so recongizably one specific person? wouldnt that mean that your entire picture space wouldnt even be able to fit a single portrait of everyone in Germany?