Bitcoin Is not trading at discount, it is trading at its normal price, which is the price people are buying and selling it on exchanges. But I understood what the news is talking about though, the price of bitcoin has massively decreased and the price is expected to increase later in time.
However: this is speculation, not financial advice.
People should invest what they can afford to lose, but investing it will not be a regret if left for long, the price will increase. You are very correct.
Well, you do not have to be a rocket scientist to figure out that something that sold for $60 000 in the past ...and currently selling for $20k+ ....are selling at a discount now. The price history of Bitcoin has also shown us that a recovery is possible, so that is also not a big surprise.
That just meant that bitcoin price has decreased and the people that have not yet invested and discouraged by the high price can invest now, but that does not mean bitcoin is selling at discount. If for example that bitcoin is selling at $24000 today, but someone is selling it at $20000, that means it is selling at discount, but that would probably be a scam attempt.