From my findings, compression algorithms such as LZW and Huffman were discovered in the last century.

Questions:

1. Will there be new compression algorithm in the future?
2. What are the Problems relating to compression algorithm?
3. Why does short sentence have negative compression ratio?
   E.g.
   What are your chances of having a great compression ratio? (from 58 chars...)
   (...to 63 bytes to 171 bytes)

I would be enlightened to know any of the answer.