> Almost everything else (fiat, gold, silver, real estate, etc...) that exists is debased/debasable, deteriorates, or loses value.

Look, yes, Bitcoin is deflationary, but it's still subject to market pressures. It's not technologically guaranteed to be worth anything 200 years from now.

Besides that...

> securely store human labor/time for future use?

It's not secure storage if you can't retrieve it[0]. What do you mean by "lossless"? You permanently lose all of the energy when you convert it into Bitcoin. You can not get that power/energy back, it is gone. What you hope is that the value of Bitcoin will allow you to trade your coins for somebody else's energy. But guaranteed scarcity is not the same thing as lossless storage, otherwise we would store all of our Youtube videos on collectable Beanie Babies.

Bitcoin's value is based on social consensus, not because it can be converted back into electricity. You're not storing anything, you are using a scarce resource to guarantee that it will be difficult to create more Bitcoin in the future, thereby creating a deflationary currency.

> Any multi-decade/multi-century solution that market participants should focus on instead?

All of them? Most currencies have been around for multiple centuries. The US dollar has been around for multiple centuries, and the US dollar is young.

Yes, the value of the US dollar can fluctuate, but, and I can not stress this enough, so can Bitcoin's value. There is no magical technology that makes Bitcoin worth anything, it's worth what people are willing to trade for it.

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Maybe a thought experiment will help here.

If you think that Bitcoin is genuinely storing energy in a lossless format independent of market pressure, then I should be able to create a new Bitcoin using the exact same technology because it's Open Source, and it should also be just as valuable, right? I just need enough people to join in on mining that it's difficult to commit fraud, and now my secondary coin should be just as good as Bitcoin at storing value, because it's using the same technology, the same distributed governance model, and the same electricity to power it.

Heck, I don't even need to create a new coin, I can fork the current chain; that's what Bitcoin Cash did. So let's say I fork Bitcoin's chain, and all of the exchanges that currently take Bitcoin also start taking my new coin so it's similarly decentralized.

Have I just doubled the amount of electricity in the world? No, of course not. Because the value of both coins will be based on social consensus, not because they are a perfect digitized storage medium for electricity.

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Another thought experiment on retrieval.

Let's say tomorrow, the apocalypse hits. The US government collapses, the dollar is worthless, all governments are overthrown. Government-issued currency is only fit to burn. Gold isn't even worth its weight in food. Only Bitcoin remains.

Now, bear in mind that the Internet does not exist anymore, because the US government and a bunch of centralized, US-dollar funded corporations were maintaining it, and they're all gone. But you would like to convert your Bitcoin back into electricity, because it's a lossless store of electricity/effort.

How do you do that? How do you even trade your bitcoin when there is no network for you to connect to? A truly lossless store of electricity should be able to handle that situation, right?

[0]: https://www.smbc-comics.com/?id=3520#comic