Certain general predictions are easy, and there is nothing prophetic or scientific about it. The fall of the Soviet Union for example was no surprise. I predict there will be an earthquake in California soon - this is probability, not prophecy.

Predicting the future, unless directly relating to your own future, I don't think it quite works. For instance, I believe there is some validity in deja vu, the sense that you have "been here" before in that given moment in time. I believe in intuition, predictive visions in your dreams, etc... Very well could be that you have lived this current life before, perhaps many times.

When you get the bad feeling or a voice in your head urging you not to go skiing, and you later find out an avalanche occurred for example, in a sense you could say that is predicting the future. But how is predicting the future possible, if it hasn't happened already? Is it really the "future" if we're just running it back again, but this time around avoiding disaster.

The problem I have with making broad global predictions going well beyond your personal life, is that it may be correct in one version of the future, but you may never notice. The future is a web of possibilities. I see it more possible to be able to write the future(in some ways), rather than to predict it. Someone in fact did change Berenstein Bears to Berenstain, so hey, someone figured something out.

Remote viewing into the past or the present, as in right now, sure I can see that being very possible, and likely. If I had the motivation to do it, I feel I could. You have to know what you are looking for though specifically.