In fact, I'd go as far as saying that my net worth is probably double what it would have been thanks to everything I've learned from running countless projection models--without them, I'd be flying blind.The purpose of running projection models is NOT to perfectly predict the future (nobody can do that).

Artificial Intelligence and Machine Learning: AI is able to quickly analyze large amounts of data to identify patterns and in turn make predictions.

Appreciation would be great but that's something harder to predict.

I wouldn't call $500,000 cheap - I use sub $200,000 as my parameter for "cheap" and if I'm not in a severely negative cash flow (-$100 to -$150 at most for first 2 years at current interest rates) but it's hard to tell since I can't predict precisely how many tenant turnovers, capital expenses, how much my property taxes/insurance will go up, repairs I would have on a renovated Class C Midwest property that's 100 years old over 10 year time span.

While no one can predict future values, it's fair to say that at some point the market will be overheated.

Hard to predict. 

I personally do not agree that RE prices drop as they are predicting.

RE is far more predictable than the market, imo. 

I could see it if Columbus has been having a better recent rate of appreciation than San Diego, but that is not the case.In addition, the predictions I have seen for San Diego appreciation in the near term have it continuing to be near the top of the nation. 

., annually or monthly).IRR does not consider the actual dates of the cash flows; it only considers the amounts and the timing (periods) of those cash flows.It's commonly used to evaluate the profitability of investments where cash flows are predictable and occur at regular intervals, such as fixed-income investments or projects with evenly spaced cash flows.XIRR (Extended Internal Rate of Return):XIRR is an extension of IRR that can handle irregular or non-periodic cash flows.