Keeping many types of altcoins reduces risk as diversification is good for investment even if price of one kind of altcoin fall, same can be recovered from another type of altcoin if its value rises. Currently, altcoins are availabe are very lower price, so it is good to keep as many altcoins and who knows one day these altcoins value gets high as much as bitcoin. It will earn you a fortune.

Transactions per second while transacting should be increased since it takes longer time to validate the transactions. Improvements can be made by increasing its security level. Other improvement can be reducing the transaction fees.  Similarly, more promotion activities should be done so that more and more people will have knowledge  and positive opinion about bitcoin.

What is reverse ICO? How is it different than ICO and what are the advantages of reverse ICO?

Yes, we need patience while investing in cryptocurrency. We should not sell when prices go down but rather hold the cryptocurrency until price rises. As well as, it takes time for cryptocurrency price to go up. For example - cryptocurrency first comes to market at one cent and slowly value of it rises with time. But, one thing we have not considered is even if price of cryptocurrency moves from one cent to two cent, its 100% increase in value. In case of bitcoin, currently prices are down, so we should be patience until prices rise.

It is not too late to buy bitcoin if you have purchasing power to buy it. Bitcoin is priced at $7620 today. Previously, it reached up to $19,000. Hence, it is perfect time to buy bitcoin as its price is lower and sell it when price jumps. Certainly, there is certain risk in buying bitcoin but you will get reward for those risk as well. Slowly, we are hearing news, bitcoin is been used for exchange in different countries and this kind of news also comes into forum.

Obviously, bitcoin is risky but you can earn lots from bitcoin while trading as bitcoin is volatile. As, well as you can earn from bitcoin if you hold your investment and sold after certain time (not for trading). Now, risk in bank investment depends on bank in which you are investing. If financials of bank is poor, then it will be risky to invest in such bank. Risk factor also depends on return. You have high risk in bitcoin compared to bank investment in general, but you will have also higher return in bitcoin.

ICO is Initial Coin Offering, just like IPO (Initial Public Offering) for stock. But here in ICO, offering is in digital currency instead of stock in IPO. Trading is done directly through company and investor. It means if you don't invest in ICO and you want to buy altcoins after ICO, then you have to purchase it through third party assuming all the altcoins are subscribed during ICO and you may be required to pay higher price than at ICO depending on the valuation of altcoins in the market. It is done to raise the fund or finance the projects required for business. It helps in the development of currency market. On the other hand, it is investment opportunity for investor to invest in crytocurrency at very low price. For example - most of the altcoins is priced at one cent at ICO. So, investor can highly benefit from ICO. Example - at ICO the price of altcoin is one cent and after certain time it reached $1. This is 9900% increase in price.
ICO is not technology.