1000% but when it is the right time (per fundamental analysis). For example around the subprime crisis companies such as Microsoft had a low PE ratio and the average person thought that Microsoft was a loser vs. Apple and Google. Microsoft has a resilience track record that would be the envy of most companies and .NET was a real thing.
I also remember other companies such as Globant that has a lower PE price vs. similar companies after their IPO. It is incredible that some investors try to build very complex models instead of waiting for the right opportunity.
Not against speculation but you should know when you are doing it or fundamental investing.