It’s like Moore’s law. The number of bytes for a basic app doubles every 2.5 years.
When I was young, we’d get a few different games games on a single 1.4 Mb floppy disk. The games were simpler, sure, but exactly the same games now would be far bigger in bytes.



It has a similar problem, but a better version of it.
From my point of view, Lemmy creates its bubble just by being friendly to one subset of views and hostile to another; and so people with some subsets of views don’t feel welcome - and they leave. This creates a kind of bubble effect; but I’m ok with that - because frankly there are some views that I really don’t want to see here anyway. Having diversity of views is good, but establishing social norms about what is acceptable or unacceptable isn’t necessarily a bad thing either.
On the other hand Reddit (in addition to the above effect) also has a big dose of top-down enforcement. Effectively it has a small hidden group of people who can control what everyone else is allowed to say. They can ban certain words and sentiments; and use techniques like shadowbanning or just algorithmic demoting to reduce the influence of stuff they don’t like. So they get a bubble as well, but the bubble can be guided and influenced by the people who control the platform. For my point of view, that makes it worse.