History is replete with examples of superior technologies that never get a foothold because of the network effect. A technology has to be dramatically superior to overcome this in many cases. Any alt feature set can simply be rolled into bitcoin if it is good enough as Bitcoin is simply an evolving open source protocol where 60% of the code has already changed.

History has shown that all republics and nations will ultimately fail as well, so yes, in this sense I agree with you, in 100 years bitcoin may likely be replaced.

USD has no value if not used either. I receive Bitcoin as payments, pay employees in bitcoin, make retail purchases in bitcoin for discounts, tip in bitcoin, wire money in bitcoin, and give out loans in bitcoin, no different than USD.

Bitcoin has value relative to all currency, commodities, and services just like the dollar. In fact most activity with Bitcoin is centered around the BTC/CNY currency pair and not USD or EUR currencies.

Bitcoin isn't toppling any national currencies and no one even suggested so. Fiat and Bitcoin will continue to coexist, compete, and assist each other all at the same time.

What about all the hardware and software that cannot so easily be re-purposed for other digital currencies? ATM'S, BTC Hardware wallets, POS systems, ASIC miners, ect...

I've stated quite the opposite, indicating that the USD does indeed have a unique difference in that it is considered legal tender while Bitcoin is sovereign and has its own unique properties that the USD lacks.

You seem to have a hard time grasping why and how a digital asset can have value. The value Bitcoin has comes from the billion+ invested in hardware, development, startups, education, marketing , and acceptance. Much of this hardware and software cannot be easily re-purposed for other crypto-currencies. Another token cannot come along and easily topple Bitcoin, just the same as a competing national currency cannot so easily topple the USD as being the most accepted reserve currency worldwide.

There is a world that exists outside your country, and one that has ~4 billion unbanked and underbanked. Within the US the dollar does indeed have many competitors, one of them being Bitcoin. The one unique thing the dollar has that Bitcoin doesn't is it is considered Legal Tender and has the privilege of the sole currency to pay taxes with and is a mandated option to repay debt with in your geographic region.

All governments do already indeed create "virtual currencies" as most fiat exists as digital tokens. Many of the benefits you speak of that Bitcoin provides will never be adopted by governments as some of the intrinsic properties are antagonistic to governments needs and desires.

Ripple is centralized and works based the economic principles of debt like most Fiat which is fundamentally different than Bitcoin where the token is a store of value itself instead of Ripple which uses "ripples" or XRP as an anti-spam token to process transactions and all payments are debt based, which carry counter-party risk.

In other words, they are not similar at all in nature and both will likely co-exist with Ripple appealing more to governments and banks.

Isn't the problem with the value of the USD is that there can be an infinite amount of competing currencies expressed by giftcards, crypto-currencies, and other forms of fiat?

It's possible that like the dollar (most widely adopted reserve currency) Bitcoin will also harness the first mover advantage and network effect to remain the principally used cyrpto-currency amongst a pool of competing currencies?

Portraying men as sex addicted, killing machine simpletons is degrading to the male gender. Many feminists would disagree with you and suggest that female sexuality if empowering.

http://blog.bitpay.com/2014/11/04/bitcoin-checkout-one-tap-mobile-bitcoin-payments.html

Yes, I understand the downsides of fewer merchant acceptance but there are plenty of upsides as well for everyone.

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