Yes I agree with you. It is difficult to make predictions for the next 15 to 30 seconds, but by looking at market trends we can guess. I usually look at trends before betting
If you do go with trends then its good for you to predict out or as long you do make yourself in profits with this then its really a profitable type of game for you.
Just like the rest on what everyone is really that saying that it is really that hard to make guess on where price would go on few seconds.
Even if we are really that good on trading or even in futures then it would really be that too hard for you to be able to guess on few second kind of guessing
but this is really gambling so get used to it.