Same as today's market, according to statistics, it is over-valued : P/E by 67%, Shiller P/E by 80%, P/Sales by 48% and P/Book by 17% from yesterday's SPY's values.
High by % = (Metric - Mean) / Mean.
market is fundamentally unsound but technically sound. If it is
technically unsound (described in my books), then it is time to exit
according to me. Again, you're responsible to your own actions and you
do not have to send me any penny if they're right.
All book profits so far have been donated to charities and I do not know any reviewers.