Bitcoin is considered the king of the crypto market. Without bitcoin the crypto would not exist. The entire crypto market depends on the price of the bitcoin. So I think investing in bitcoins will be the safest because altcoin is dependent on bitcoin.
Yes your right for me only bitcoin is still the safest investment, as we know it is always at the top and to this, bitcoin only has the surest high price ever even if its price flactuates, but i consider this always has the highest value in the market.