What are you talking about? It literally has a program counter register, it's right there in you own link? https://docs.oracle.com/javase/specs/jvms/se23/html/

What are you talking about? It literally has a program counter register, it's right there in you own link? https://docs.oracle.com/javase/specs/jvms/se23/html/jvms-2.html#jvms-2.5.1 https://docs.oracle.com/javase/specs/jvms/se23/html/jvms-2.h... I just mixed it up with Dalvik having multiple registers, but that makes it even worse. At least normal machines have more registers. And literally here: The following section provides general guidelines for tuning VM heap sizes: The heap sizes should be set to values such that the maximum amount of memory used by the VM does not exceed the amount of available physical RAM. https://docs.oracle.com/cd/E21764_01/web.1111/e13814/jvm_tuning.htm#PERFM150 https://docs.oracle.com/cd/E21764_01/web.1111/e13814/jvm_tun... Maybe instead of telling me I'm clueless, tell me how you're right? What do you see in it that is actually virtializing a computer in your mind? Because I'm pretty sure that if someone sold you a VM service and it turned out to be just them running your programs under the JVM, you'd be kind of mad.