I think Bitcoin is the safest, least risky and most reliable asset among crypto assets for long-term investment. Its pumping system makes it more reliable. Where other coins stay at the same price day after day and the price keeps going down, Bitcoin is on the rise in the long term. It is even better than other coins in terms of security. Altcoin and Memecoin investments are very risky even though they are long-term. So Bitcoin investment is really a good choice for long-term investment.