I have written before about wanting a lightweight desktop PC that I can carry around with me.

I bought it.

It was a really, really painful expense, but I was afraid to use a free-address computer for security reasons, and I was determined to make it an unavoidable expense in order to do "serious coding" with a free-address from now on.

Having said that, if I was going to spend money, I wanted it to be something other than PC.

If I count Raspberry Pi as a PC, then I have almost 10 PCs in our house.

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A PC is a "raw product" and will be useless after three years.

For example, in yesterday's seminar, the laptop I brought as a backup for my iPad was completely useless, and I almost ruined the presentation I had prepared.

But of course, if I keep using the old OS and apps, I can use them for even 100 years.

But if I install Office, Teams, VSCode, R, Docker, SAI, and so on, my PC will naturally become unusable.

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"As long as I can write in my laptop's editor, that's all that matters"

In this world, I would not have to manage 10 computers.

I want to put figures and tables in that text, I want to do calculations, I want to do simulations, I want to use a million objects, I want to--

That's what I want, and that's why the PC 'rots' every year.