I think you are getting something wrong here. Bitcoin is the crypto itself. Every other coins you see today were built around bitcoin. Many people only know bitcoin when they hear the word crypto. There are people out there today who doesn't know that other coins exist, so when they hear about crypto the first thing that comes to their mind is bitcoin. Bitcoin is the crypto currency, if you are not aware of this know it today. If he had mentioned alt coins then you can say he is referring to other coins. So @Michelle is not talking out of point when he used the word crypto. If you see a newbie that has no knowledge about bitcoin investment, ask him or her what is crypto, I bet you the person will mention bitcoin.
We are analyzing the price change of Bitcoin, we determine when the right time for buying Bitcoin. I think it is the point of this thread.
The point of this thread is not to analyze the price change of bitcoin, just as @Tmoonz told you. The point of this thread is to buy bitcoin and hold it for the long term using the DCA strategy so that you do not want to time the market before you can start accumulating your bitcoin, which can delay your bitcoin accumulation journey. With the DCA strategy, you can accumulate your bitcoin even when the bitcoin price is increasing or decreasing because you will be buying at regular intervals.