It is impossible. And has been demonstrated repeteadly and using different approaches and models. In a 30 year span a coin toss model has the same ROI than the 99.99% Hedge funds.
Then there is Warren Bufett.
Don't mistake the skill and discipline that takes to anticipate tendencies with the magic power of making predictions.
Read this last sentence again.
Bingo ;-)
For you to argue that it is impossible to anticipate price changes using software is like arguing that it is impossible to go to the moon. You honestly could make a more convincing argument that it is impossible to go to the moon. You see here right in front of you, on my website, that I - as an undergrad studying computer science, far from a financial expert - was able to do it myself. This means that obviously people with much more experience than me can do it. And they do it on a regular basis. Use Google... you'll see that these types of strategies are commonly employed and proven to be successful.
Also honestly I find it hard to believe that anybody can believe that THIS is impossible. After all that humanity has done, all of our complex and great technological achievements, you think that predicting stock prices with reasonable accuracy is impossible? It's very possible and I have done it. So have many others.