In H. G. Wells’s classic The War of the Worlds, the narrator pauses a moment to rue the fact that he didn’t react sooner to the arrival of an “intelligence greater than man’s”–in his case, Martians landing on earth. Comparing himself to a comfortable dodo in its nest, he imagined those ill-fated birds also dithering as hungry sailors invaded their island: “We will peck them to death tomorrow, my dear.”

And what about you? As intelligent technologies take over more and more of the decision-making territory once occupied by humans, are you taking any action? Are you sufficiently aware of the signs that you should? To help you get the head start you may need, here are the signs that it’s time to fly the nest. All of them are evidence that a knowledge worker’s job is on the path to automation.

If you don’t have to touch your work or see your customer face-to-face in order to perform your job, there’s less reason not to automate it. If you deal primarily in documents (as real estate and many other types of attorneys do, for example) or images (like radiologists), systems can digest that content and determine its meaning. If your job requires you to wrestle with something physical in unpredictable ways, it’s not going away very soon. An anesthesiologist friend, for example, says he often has to move patients around a lot to clear airways, so he doubts robots will put him out of work.

We already know that analytics and algorithms are better at creating insights from data than most humans. They have already replaced some insurance policy underwriters and financial planners. They’ll probably replace more, since this human/machine performance gap will only increase.

For example, a company called Kensho Technologies has created an intelligent software system called Warren, which can already answer questions like, “What happens to the share prices of energy companies when oil trades above $100 a barrel and political unrest has recently occurred in the Middle East?” The company stated that by the end of 2014, its software would be able to answer 100 million different distinct financial questions involving complex data.

One might think that quantitative analysts would be immune from job loss in the “Age of Analytics,” but there are technologies that place their jobs at risk, too. Many quantitative analysts’ jobs will be replaced–or at the least heavily augmented–by machine-learning systems. Machine learning is probably best used to augment human analysts and improve their productivity in analysis and model development.

If you’re a quantitative analyst who understands machine learning, you may well keep your job. If you don’t understand it, you’ll probably be replaced by it.

But in some settings, such as online advertising, it’s virtually impossible not to employ machine-learning approaches to generate models at the necessary pace. The number of models needed to target a particular consumer and a particular advertising opportunity easily ranges into the thousands per week, and the likelihood of a successful conversion (say, the customer buying the advertised product within a week) is about one in a thousand at best–meaning it’s not worth human attention. Models generated through machine learning are the only possibility in this industry and a growing number of other ones.