Is it true that 90 percent of the altcoin will die after the bitcoin bubble burst? If so how can i choose to invest in coins now?
Yes. Even crypto projects follow the business survival statistics that 9 out of 10 will fold on the first 5 years, then 9 out of 10 that survived will also fold in the next 5 years.
Being the first, only Bitcoin is the ONLY cryptocurrency that survived for 10 years now.