Unix is around for about 50 years now and it doesn't look like it is getting replaced any time soon. If anything, the problem of Unix is, that in these 50 years

Unix is around for about 50 years now and it doesn't look like it is getting replaced any time soon. If anything, the problem of Unix is, that in these 50 years, there was far to few cleanup going on. It is about house-keeping. Do we want a system which is designed by arbitrary decisions 50 years ago, or do we constantly clean up those corners to keep a clean system?